Season 7

Mariah Carey

David Beckham

Kate Beckinsale

Katherine Heigl

Sharon Osbourne

Queen Latifah

Jennifer Aniston

Ted Danson

Neil Patrick Harris

Jennifer Love Hewitt

Jennifer Garner

Courteney Cox Arquette

Christina Applegate and Dave Annable

Actress Christina Applegate; actor Dave Annable (``Brothers & Sisters''); the Noisettes perform.

Patricia Arquette

Actress Patricia Arquette (``Medium''); ``Dancing With the Stars'' contestants Tom DeLay and Cheryl Burke.

Rebecca Romijn

Actress Rebecca Romijn (``Eastwick'').

Drew Barrymore

Director Drew Barrymore (``Whip It'').

Heidi Klum

Model Heidi Klum (``Project Runway''); Brad Paisley performs; chef Roberto Martin.

Kate Walsh

Actress Kate Walsh (``Private Practice''); dancers Melissa Sandvig and Ade Obayomi perform.

Felicity Huffman

Actress Felicity Huffman (``Desperate Housewives''); Roger Daltrey performs; animal handler Jack Hanna.

Julia Louis-Dreyfus

Actress Julia Louis-Dreyfus (``The New Adventures of Old Christine''); actor Jason Schwartzman (``Bored to Death''); ``Dancing With the Stars'' contestants Melissa Joan Hart and Mark Ballas.

Rob Lowe

Actor Rob Lowe (``The Invention of Lying''); actress Juliette Lewis (``Whip It''); Miranda Lambert performs.

Ellen Page

Actress Ellen Page (``Whip It''); actor Kevin Nealon; Michael Franti & Spearhead perform; Horia ``Billy'' Cretan discusses saving a 4-year-old boy from a burning building.

Clive Owen

Actor Clive Owen (``The Boys Are Back''); actress Joely Fisher (``'Til Death''); the Backstreet Boys perform.

Jason Bateman

Actor Jason Bateman (``Couples Retreat''); author Judy Shepard (``The Meaning of Matthew''); 9-year-old singer Anna Grace performs.

Vince Vaughn

Actor Vince Vaughn (``Couples Retreat''); Pete Yorn and Scarlett Johansson perform.

Jimmy Smits

Actor Jimmy Smits; actor T.R. Knight (``Parade''); Daughtry performs.

Alison Sweeney

TV show host Alison Sweeney (``The Biggest Loser''); the Script performs; 10-year-old twins perform a cappella.

Taye Diggs

Actor Taye Diggs (``Private Practice''); chef Wolfgang Puck; dancer Shelby ``Skip'' Skipper performs.

Marcia Cross

Actress Marcia Cross ("Desperate Housewives"); actor Dylan Walsh ("The Stepfather"); dancer Bryan Boyer performs.

Hayden Panettiere

Actress Hayden Panettiere (``Heroes''); Angel Taylor performs; ``Dancing With the Stars'' contestants Aaron Carter and Karina Smirnoff.

Lauren Graham

Actress Lauren Graham ("Parenthood"); music group One Republic; 4-year-old hip-hop dancer.

Mario Lopez

Author Mario Lopez ("Mud Tacos!"); chef Roberto Martin.

David Spade

Actor David Spade; actor John C. Reilly (``Cirque Du Freak: The Vampire's Assistant''); Mika performs; a 10-year-old girl raises money for a no-kill animal shelter.

Alyson Hannigan

Actress Alyson Hannigan (``How I Met Your Mother''); ``Dancing With the Stars'' contestants Mya and Dmitry Chaplin.

Hilary Swank

Actress Hilary Swank (``Amelia''); Jay Sean performs.

Jimmy Kimmel

Talk-show host Jimmy Kimmel; author Deepak Chopra (``Reinventing the Body, Resurrecting the Soul'').

Katie Couric

Journalist Katie Couric; TV personality Kate Gosselin; actress Gabourey "Gabby" Sidibe ("Precious: Based on the Novel "Push" by Sapphire").

Taylor Swift

Singer Taylor Swift; Tim McGraw performs; backup dancers from ``Michael Jackson's This Is It'' perform.

Halloween Show

Halloween Show: singer Kellie Pickler; singer Rick Springfield; Science Guy Steve Spangler.

Jim Carrey

Actor Jim Carrey (``A Christmas Carol''); singer Faith Hill discusses her new fragrance.

Mo'Nique

Actress Mo'Nique (``Precious: Based on the Novel ``Push'' by Sapphire''); ``The Biggest Loser'' castoff Abby Rike; Justin Bieber performs.

Mariah Carey

Singer Mariah Carey; author Jonathan Safran Foer (``Eating Animals''); latest castoffs from ``So You Think You Can Dance.''

Amy Poehler

Actress Amy Poehler (``Parks and Recreation''); actress Fran Drescher discusses her skin care line.

Pamela Anderson

Actress Pamela Anderson discusses her new fragrance; young inventors.

George Lopez

Talk show host George Lopez; actress Robin Wright Penn (``The Private Lives of Pippa Lee''); 7-year-old solar system enthusiast Brandt Bickford; Game Week kicks off.

Jenny McCarthy

Actress Jenny McCarthy; actor Shemar Moore; Game Week continues.

John and Ella Bleu Travolta

Actors John and Ella Bleu Travolta (``Old Dogs''); Game Week continues.

Harry Connick Jr.

Harry Connick Jr. performs; actress Paula Patton (``Precious: Based on the Novel ``Push'' by Sapphire''); Game Week continues.

Ryan Seacrest

Media personality Ryan Seacrest; the latest castoff from ``So You Think You Can Dance''; Game Week concludes.

Dakota Fanning

Actress Dakota Fanning (``The Twilight Saga: New Moon''); rapper Diddy discusses his alcoholic beverage line; ``Dancing With the Stars'' contestants Joanna Krupa and Derek Hough.

Dwayne Johnson

Actor Dwayne Johnson (``Planet 51''); journalist Brian Williams; 12-year-old singer Rhap Salazar performs.

Carrie Underwood

Carrie Underwood performs; actor Kellan Lutz (``The Twilight Saga: New Moon'').

Simon Baker

Actor Simon Baker (``The Mentalist''); Leona Lewis performs; former tennis player Andre Agassi discusses his autobiography, ``Open.''

Robert Pattinson

Actor Robert Pattinson (``The Twilight Saga: New Moon''); 13-year-old violinist Justus Rivera performs.

Jon Bon Jovi

Singer Jon Bon Jovi; the group Bon Jovi performs; "Dancing With the Stars" contestants Kelly Osbourne and Louis van Amstel; a 7-year-old pingpong prodigy.

Penélope Cruz

Actress Penélope Cruz ("Broken Embraces"); Kris Allen performs; the latest castoffs from "So You Think You Can Dance."

Sandra Bullock

Actress Sandra Bullock ("The Blind Side").

Lady Gaga

Lady Gaga performs; beauty guru Kym Douglas.

Adam Lambert

Adam Lambert performs; model Marisa Miller.

Matt Dillon

Actor Matt Dillon (``Armored''); actress Ashley Greene (``The Twilight Saga: New Moon''); TV personality Tia Maria Torres (``Pit Bulls and Parolees'').

Jennifer Lopez

Jennifer Lopez performs; a performance from Cirque du Soleil's KOOZA.

Tobey Maguire

Actor Tobey Maguire; actress Minnie Driver.

Zach Braff

Actor Zach Braff (``Scrubs''); Allison Iraheta performs; the latest castoffs from ``So You Think You Can Dance'').

Clint Eastwood

Actor Clint Eastwood (``Invictus''); Overtone performs; 7-year-old Brandt Bickford showcases the hottest toys for the holidays.

Howie Mandel

Author Howie Mandel (``Here's the Deal''); actress Marie Osmond.

Steve Harvey

Actor Steve Harvey; actress Mindy Kaling.

Selena Gomez

Actress Selena Gomez; Selena Gomez & The Scene perform; chef Roberto Martin.

Ray Romano

Actor Ray Romano (``Men of a Certain Age''); Marie Tillman, widow of former NFL player Pat Tillman.

John Mayer

John Mayer performs; a performance by the top six contestants from ``So You Think You Can Dance.''

Paris Hilton

Socialite Paris Hilton discusses her new fragrance; author Lewis Blackwell (``The Life & Love of Trees'').

Craig Ferguson

Author Craig Ferguson ("American on Purpose: The Improbable Adventures of an Unlikely Patriot"); Actor Zoe Saldana ("Avatar")

John Krasinski

Actor John Krasinski ("It's Complicated"); Robin Thicke performs.

Christian Slater

Actor Christian Slater (``The Forgotten''); Rickie Lee Jones and Ben Harper perform; the winner of ``So You Think You Can Dance.''

Helen Mirren

Actress Helen Mirren (``The Last Station''); 8-year-old pianist Emily Bear; Kesha performs.

Queen Latifah

Actress Queen Latifah; exercise guru Richard Simmons.

Wanda Sykes

Comic Wanda Sykes; 5-year-old Kylie Kim.

Jackie Chan

Singer Mary J. Blige performs; actor Jackie Chan (``The Spy Next Door''); actress Anna Kendrick (``Up in the Air'').

Matthew Broderick

Actor Matthew Broderick ("Wonderful World"); Mary J. Blige performs; Jillian Michaels ("The Biggest Loser").

Bette Midler

Singer Bette Midler; actor Eric Stonestreet (``Modern Family''); chef Tal Ronnen (``The Conscious Cook'').

Josh Holloway

Actor Josh Holloway (``Lost''); actor Matthew Goode (``Leap Year''); Gloriana performs.

Edward Norton

Producer Edward Norton (``By the People''); actor Jim Parsons (``The Big Bang Theory''); magician Shawn Farquhar performs.

Mark Wahlberg

Keith Urban

Keith Urban performs; Jake Pavelka (``The Bachelor''); 10-year-old twins Darius and Demetrice Gillespie perform; LMFAO performs.

Jeff Bridges

Actor Jeff Bridges (``Crazy Heart''); director Tom Ford (``A Single Man''); subway hero Douglas Murphy; Matt Morris and Justin Timberlake perform.

Dennis Quaid

Actor Dennis Quaid (``Legion''); actress Sofia Vergara (``Modern Family''); a castoff from ``The Bachelor.''

Colin Firth

Actor Colin Firth (``A Single Man''); Drew Pinsky (``Celebrity Rehab With Dr. Drew''); Orianthi performs.

Sean Hayes

Actor Sean Hayes (Broadway's "Promises, Promises"); journalist Anderson Cooper discusses the Hope for Haiti telethon; Ingrid Michaelson performs.

Valerie Bertinelli

Actress Valerie Bertinelli; actor Zachary Levi ("Chuck").

Ellen's birthday show

Ellen's birthday show; singer Harry Connick Jr.; actor Will Arnett ("When in Rome"); Adam Lambert performs.

Jenna Elfman

Actress Jenna Elfman (``Accidentally on Purpose''); show host Chris Harrison (``The Bachelor''); Lady Antebellum performs.

Mario Lopez

Show host Mario Lopez ("Extra"); Corinne Bailey Rae performs.

Josh Duhamel

Actor Josh Duhamel (``When in Rome''); actor Matthew Bomer (``White Collar'').

Ellen's Grammy Show

Singer Rhianna and highlights directly from the Grammy red carpet..

LL Cool J

Actor LL Cool J ("NCIS: Los Angeles"); actress Jessica Capshaw ("Grey's Anatomy"); golfer Bubba Watson.

Ellen Pompeo

Actress Ellen Pompeo (``Grey's Anatomy'').

Heidi Klum

Model Heidi Klum discusses heart disease awareness; Olympic men's snowboarding gold medalist Shaun White; juggler Anthony Gatto performs.

Super Bowl Show

Ozzy, Sharon, Jack and Kelly Osbourne discuss Ozzy's new book; chef Roberto Martin; Train performs.

1,100th Show

Actress Jessica Alba (``Valentine's Day'').

Bradley Cooper

Actor Bradley Cooper ("Valentine's Day"); actress Emily Blunt ("The Wolfman").

Demi Moore

Actress Demi Moore (``Happy Tears''); actor Channing Tatum (``Dear John''); Michael Bubl‚ performs.

Patrick Dempsey

Actor Patrick Dempsey (``Valentine's Day''); beauty guru Kym Douglas.

Valentine's Day Show

Actress Anne Hathaway (``Valentine's Day'').

Eric Dane

Actor Eric Dane ("Valentine's Day"); Rihanna performs; Game Week kicks off.

Mardi Gras Show

Singer Kellie Pickler; ``The Bachelor'' castoff; Sade performs; Game Week continues.

Tracy Morgan

Actor Tracy Morgan ("30 Rock"); racecar driver Danica Patrick; Game Week continues.

Kate Walsh

Actress Kate Walsh ("Private Practice"); Game Week continues.

Game Week Finale

Reality TV star Kim Kardashian; the latest "American Idol" castoff; Game Week concludes.

Randy Jackson

"American Idol" judge Randy Jackson.

Ewan McGregor

Actor Ewan McGregor (``The Ghost Writer''); chef Gordon Ramsay; a Georgia woman tells her heroic story; ``American Idol'' castoff Shelby Dressel.

Woody Harrelson

Actor Woody Harrelson ("The Messenger"); skier Julia Mancuso.

Felicity Huffman

Actress Felicity Huffman ("Desperate Housewives"); actor Jesse Williams ("Grey's Anatomy").

Jimmy Kimmel

Comic Jimmy Kimmel.

David Spade

Actor David Spade; ``The Buried Life'' creators, Duncan Penn, Ben Nemtin, Dave Lingwood and Jonnie Penn; Daniel Merriweather performs.

Lauren Graham

Actress Lauren Graham (``Parenthood''); skier Lindsey Vonn; Mina Tank performs.

Courtney Cox

It's been a crazy season full of scandals and surprises on "The Bachelor," and Ellen has been riveted with the rest of America. This week, Jake finally made his decision between Vienna and Tenley -- was it the right one? Today the woman without the ring is visiting Ellen to spill everything -- about everyone! Then, COURTENEY COX is sure to have some fun and crazy stories -- she just returned from Jennifer Aniston's huge birthday party in Cabo San Lucas! Courteney has had a lot to celebrate recently, with her first Golden Globe nomination for her hit show "Cougar Town." She and husband David Arquette met while filming "Scream" -- and will soon get a chance to relive it when they start filming the fourth one this summer! Ellen will make sure to get an update on their beautiful daughter, Coco. It's also time for another round of Know or Go. While people are falling down, you never know if a celebrity might pop up with a big surprise for the audience!

Simon Baker

Jake from "The Bachelor" has given the final rose, and today the couple is here to share all the behind-the-scenes details with Ellen! It's been one of the most scandal-filled and surprising seasons ever, and they have a lot of questions to answer! Ellen will find out all the drama, and she's making sure they answer the tough questions! While here, Jake might want to get some tips from the very sexy SIMON BAKER. He's been married for over 11 years! It must be the romance -- he said he loves an open fire with a sunset. Who wouldn't love a man like that? Being labeled the sexiest man on TV doesn't hurt either! Plus, last summer over 2 million people downloaded the #1 hit song, "Whatcha Say." It was JASON DERULO's first single, which made it clear that he was headed to the top! Now he's releasing his debut CD and is stopping by to perform his latest hit, "In My Head." And, Ellen has another group of audience members who will show off their unbelievable hidden talents today.

Ed Helms, Isaiah Mustafa, Vedera

Kristin Chenoweth, Jean-Christophe Novelli, the Bird and the Bee

1096

Sharon Osbourne, Usher, "American Idol" castoff Paige Miles

Eva Longoria Parker, Crystal Swing

Kirstie Alley, Cyndi Lauper, Matthew Morrison

David Duchovny, Aziz Ansari, Nikki & Rich, Erin Andrews & Maksim Chmerkoskiy

Howie Mandel, Tori Spelling & Dean McDermott, Nicole Scherzinger & Derek Hough

Lisa Kudrow, B.o.B. featuring Bruno Mars

Wanda Sykes, Evan Lysacek & Anna Trebunskaya, Jason Castro

Annette Bening, Science Guy Steve Spangler

Marisa Tomei, Toni Braxton

Kiefer Sutherland

Kiefer Sutherland discusses his medical emergency on the set of 24 and where the show is going. A 10-year old guitarist, Yuto Miyazawa, performs. A new edition of mystery word.

Paris Hilton, Kathy Hilton, "American Idol" castoff Siobhan Magnus

Julia Louis-Dreyfus, Slash & Adam Levine, Cory Monteith

Queen Latifah, Justin Bieber

Steve Carell, Nikki Reed, James Taylor & Carole King

Robert Pattinson, Adam Lambert

Antonio Banderas, Weezer

Eddie Murphy, Jason Lewis, "American Idol" castoff Casey James

Greyson Chance, Colin Farrell, Janelle Monae

Ashton Kutcher, Chely Wright, dancers from "So You Think You Can Dance"

"American Idol" winner Lee DeWyze, runner-up Crystal Bowersox