Eva longoria, kobe bryant, ellen degeneres

Jamie foxx, marc anthony

Larry david, kelly osbourne

Charlie sheen, demi lovato

Andy garcia, the real housewives of orange county

Andy garcia, real housewives of oc, justin bieber

Ted danson, bill engvall

Eva mendes, craig robinson

Sandra bullock, derek luke, shakira

Laurence fishburne, olivia munn

Taye diggs, kaley kuoko, ruben paul

Laurence fishburne , olivia munn, los lobos

Kathy griffin, rico rodriguez

Hillary duff, scott bakula

Cedric the entertainer, corona girl & morrissey

Hilary duff, scott bakula & rudy moreno

Mariah carey, david beckham

"george lopez" reunion

David beckham & mariah carey

Ray romano, lake bell, mariah carey & the cast of

Larry david, lisa lampanelli, jay sean, birdman

Ted danson, bill engvall, orianthi

Jamie foxx, marc anthony

Sandra bullock, derek luke, shakira, chola girl

Jackie chan, ke$ha

Samuel l. jackson, omarion

Charles barkley

Snoop dogg, saoirse ronan

Amber valletta, mark valley

Brendan fraser, khloe and kourtney kardashian

Tyrese gibson, betty white

Samuel l, jackson, dianna agron

Cheech and chong, regina king

Sofía vergara, james van der beek

Jamie foxx and garry marshall

Topher grace, jewel

Ashton kutcher, emma roberts, carter jenkins

Jennifer garner, hector elizondo and steel magnolia

Season 1, episode 45

Season 1, episode 46

Snoop dogg; saoirse ronan

Jennifer lopez; amber valletta; mark valley; christian lander

Freddie prinze jr., steve austin

Lenny kravitz, khloe & lamar odom, emilio estefan

Ozzy osbourne, kendra & hank baskett, alonzo mourning

Shannen doherty, louis psihoyos, jessica szohr, jason derulo

Dominic monaghan, kat von d, joe bonamassa

Wanda sykes, peter facinelli, loni love

Johnny weir, andy garcia, lance gross, lucrecia featuring andy garcia

Chris jericho, dakota fanning, david arquette, johnny weir, kat von d

Chris jericho, david arquette, elizabeth chavira,trey songz

Eric andre, eva longoria, sinbad

Chad ochocinco, johnny weir

Annie wersching, foreigner, snoop dogg

Clark duke, ludacris

Johnny sanchez, omar epps, wendy williams

Ron artest, usher

John corbett, mark littell, nicole scherzinger, steve lyons

Brandy, ray j

Bruno tonioli, george wallace, taraji p. henson

Slash, zachary levi

Chris rock, oscar de la hoya, sugar shane mosley

Audrina patridge, benjamin bratt, bryan kellen

Luke wilson, monica

James marsden, reggie miller

Kara dioguardi, cheech marin & tommy chong, jason reeves

Angela kinsey, brendan fraser, jason aldean

Chris evans, idris elba, lowell sanders, zoe saldana

Jennifer lopez, ken jeong, ozomatli

Amare stoudemire

Matthew mcconaughey

Dallas mavericks

Prince

Randy jackson, monica potter, paper tongues

Dennis quaid, rampage jackson, rashad evans

Toni braxton

Sir ben kingsley, janelle monae

Drew carey, marisa miller, mike posner

Adrien brody, terry crews, hot chelle rae

Cat deeley, charlie murphy

Jonah hill, peter frampton

Ashton kucher, hanson

Jackie chan, jaden smith, taraji p. henson

Ice cube, alfre woodard

Bryan cranston, lil jon featuring lmfao

Liam neeson, bradley cooper, sharlto copley, quinton "rampage" jackson

Tim allen, padma lakshmi

Jaden smith, jackie chan, taraji p. henson

Rob schneider, mel b, crash kings

Ozzy & sharon osbourne, jillian michaels

Helen mirren, cedric the entertainer, ron artest

Bill cosby, blair underwood, kid 'n play

100th episode - kobe bryant, louis c.k.

Kathy griffin, michael "the situation" sorrentino, vinny guadagnino, paul "pauly d" delvecchio, nicole "snooki" polizzi, ronnie margo, samantha giancola, jenni "jwoww" farley, angelina pivarnick

Kellan lutz, missy peregrym, clay walker

Vivica a. fox, big boi

Terrell owens, lifehouse

Nicolas cage, dania ramirez, shorty rossi

Ali fedotowsky, travie mccoy & bruno mars

America ferrera, holly robinson peete, tommy davidson

Tiffani thiessen, enrique iglesias

Selena gomez, wilmer valderrama, rob schneider

Steve carell, maggie q, backstreet boys

Diddy, tony robbins, diddy-dirty money

Zac efron

Jim parsons, tricia helfer, tom morello & boots riley's band street sweeper social club

Luke wilson, margaret cho, billy ray cyrus

T.i., idris elba, michael ealy

Will ferrell, elisabeth moss

Eva mendes, josh hutcherson, dolph zigler

Anna paquin, randy "the viper" orton, the miz

Mark wahlberg, bill bellamy, david otunga

Gordon ramsay, aubrey plaza, r-truth

Jason statham, aubrey plaza, wolfmother

Dylan mcdermott, kat von d, meat loaf

Bow wow, lisa edelstein, caroline manzo & teresa guidice, twitch

Michelle rodriguez, ted nugent

Justin long, michael strahan, los lobos

Jason sudeikis, kim & kourtney kardashian, korn

Drew barrymore, fantasia

Christina applegate, charlie day, lynyrd skynyrd

Snoop dogg, bethenny frankel, goo goo dolls

Audrina patridge, enrique iglesias featuring juan luis guerra

Danny devito, carmelo anthony, la la vasquez, chris spencer

Tim gunn, devo

Eric dane, cloris leachman, daughtry

Michael franti & spearhead

Anthony anderson, morgan spurlock, santana & india.arie

Kevin connolly, mike "the situation" sorrentino & rob schneider

Ll cool j., kelly osbourne & santana with nas

Al madrigal, minka kelly & rob morrow

Magic johnson, sara ramirez & far east movement aka fm

Tom bergeron & seal

Jim belushi, shakira & neon trees

Johnny knoxville, bam margera, steve-o, chris pontius & whitney cummings

Eva longoria parker & john legend

Jeff foxworthy, duane "dog" chapman & chris weber

Bryce dallas howard & criss angel

Bill maher, lauren conrad & taio cruz

Jon cryer, patti stanger & sean kingston

Jenny mccarthy, eric balfour & all star weekend

Bill maher; lauren conrad; taio cruz

Janet jackson

Donald elson, kosta trouva

Howie mandel, juliette lewis

Denzel washington, hilary duff

Tom felton, ne-yo

David arquette, ashley greene, billy the exterminator

Billy bob thornton, kunal nayyar, ice cube

Dwayne johnson, katie cassidy

Jennifer love hewitt

Bill cosby, angela kinsey, atomic tom

Charles barkley, brandy, cee-lo green

Mario lopez

Khloe kardashian, jo frost, nicki minaj

Bob saget, nene leakes, keri hilson

Alan cumming, chris d'elia

Steve harvey, the 88

Eric stonestreet, j.b. smoove, dov davidoff

Anna faris, apolo anton ohno, natasha bedingfield

Mila kunis, dr. drew pinsky, chrisette michele

Justin timberlake, stephen dorff, ciara

Xzibit, a performance from cirque du soleil's "mystere"

Gene simmons, scott bakula, bettye lavette with the ese vatos

Ron artest, will.i.am, dean cole

Jack black, hailee steinfeld, filter

Lauren graham, will sasso, plain white t's

Mary lynn rajskub, maz jobrani

El debarge featuring faith evans, michael bearden & the ese vatos

David duchovny, kristen schaal, saving abel

Seth rogen, ginnifer goodwin, sick puppies

William h. macy, camille grammer, cali swag district

Cameron diaz, jason priestley, luke perry, greg fizsimmons

Bill engvall, johnny weir, my chemical romance

Ashley tisdale, kevin hart, grace potter & the nocturnals

Vanessa williams, shorty rossi

Jason statham, busy philipps, wiz khalifa

Jennifer love hewitt, guy fieri

Kristen bell, jake johnson, slash

Desean jackson, the thermals

Mindy kaling, derek fisher, jasper redd, arturo sandoval

Billy gardell, rachel bilson, ok go

Jamie foxx, aubrey plaza

Channing tatum, margaret cho, 50 cent with governor

Joan rivers, greg jennings, baron vaughn

Brad womack, taylor momsen, the pretty reckless

R. kelly, paul wesley, james loney, bobby castillo, tommy davis, kenny landreaux, rudy law, steve lyons, don mattingly

Justin bieber, far east movement

Liam neeson, a performance by the broadway cast of "rock of ages"

200th episode - jenni "jwoww" farley, jim jefferies

Amar'e stoudemire, kate gosselin, sebastian maniscaclo

Martin lawrence, jared leto, 30 seconds to mars

Forest whitaker, jessica lucas, bobby v & bobby brown

Jason biggs, anne heche

Owen wilson, aly michalka, terry fator

Cheryl burke, brandon t. jackson, john popper & the duskray troubadours

Ron artest, dj pauly d, michelle rodriguez, future funk

Topher grace, scott disick, cake

Forest whitaker, donald glover, steel train

Aaron eckhart, malin akerman, eric andre

Curtis stone, lupe fiasco

Pee-wee herman, emanuelle chriqui

Mike tyson, emmy rossum, 30 seconds to mars

Jim rome, boney james

Matthew mcconaughey, micky ward, ron artest featuring george lopez, fat joe, b real, lenny and max from aventura and taz

Bethenny frankel, d.l. hughley, seether

Vanessa hudgens, sergio mendes

Larry king, brent weinbach

Snoop dogg, brittany snow

Lil jon, panic! at the disco

Drew carey, sarah shahi, quinn dahle

Lisa lampanelli

Danny mcbride, camilla luddington, avril lavigne

Kathy griffin, tom felton