Even though I only know a few celebrities actual xbox live gamertags, I decided to make a post dedicated to them. This will be a running list, so if anyone knows any other celebs or famous people's gamertags, post them in the comments. Out of the whole list I've only played Modern Warfare 2 with Robert Kelly and he seems like a good dude. He actually invites me to his XBL parties all the time whenever he sees me playing MW2 and he uses his headset to chat it up. So while he may not be as popular as some other comedians/stars it's nice that he actually participates in the games.
Confirmed
Lord 187x - Ice-T (Rapper/Actor)
SouljaBoyTellEm - Soulja Boy Tell Em (Rapper)
MRxzibit38 - Xzibit (Rapper/Actor)
YouStink2 - Robert Kelly (Comedian)
Freddee D LBGC - Fred Durst (Limp Bizkit Singer)
Estaban85 - Chad Ochocinco (Football Player)
tonyinegypt - Tony Hawk (Skateboarder) - May or may not be temporary (based on the "in egypt" part), but he posted it on Twitter
Get the new Call of Duty(R). and play with all these celebrities and more!
Those few above are confirmed via videos, twitter, etc. The list below are UNCONFIRMED, found on random forums and other sites. The ones that end in GWF are "Game With Fame" Gamertags and probably no longer work.
Unconfirmed
50 Cent - Kid4Life
Bill Gates- MSgates123
Colt Cannon (famous skateboarder)- Coltron3030
Adrian Peterson- SoonerPride28
Matt Leinart- KingofTroy11
Jenny McCarthy - JennyGWF
Dave Navarro & his band- PanicChannel
Method Man - MethodManGWF
Members of the band O.A.R. - OARMarc, OARBenj,OARJerry, OARChris, and RichOARd
Ryan Pratt (from ListAfterList) - EarsP
Michelle Rodriguez- MRodriguez
Willis McGahee - WMcGahee21
Dan Cody- OKDanCody80
Grant, the bassist from underoath: youmissedme
J Allard (Xbox team) - HiroProtagonist
Mei Mei Bong (xbox team) - DragonLady
Dane Cook - DaneCook
Senior Editor of the popular gaming review and info site, GameSpot - GameSpotting
Gilbert Arenas - AgentArenas
Andy Roddick - AndyGWF
Jim Carrey - Jim_Carrey
Mr. T - T100
Chingy - ChingyGWF
Michael Halford - Coola
Bill Gates - MicroBoy
Ludacris - xrider
Bam Margera - Gumball 3000
Brady Quinn - BQuinnGWF
Paul Wall, the rapper - T Paul Wall
Shia LaBeouf - ShiaGWF
Eminem - your_an_idiot2414
Dave Mustaine from Megadeth - DMustaine
Jason Giambi -giambiGWF
Charlie Frye (QB of Cleveland Browns) - BT67
 Xbox 360 Live Quick Charge Kit Brand New  US $18.50
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Played cod MW2 with Zac Efron a few times. I met him on xbox through a friend of a friend who’s friends with him. His gamertag is Beach Stud. I wouldn’t bother sending him a friend request though, he only adds people he knows.
Jhonen Vasquez was on Game With Fame, that gamertag was Bioshock2Jhonen . but like you said it probably no longer works.
I was informed that Christian Finnegan, the comedian, has an Xbox Live gamertag that is something like ‘MC Mustache’.
DURST LBGC is no Longer Fred Durst’s xbox live gamertag. it has recently been changed.
so it is confirmed to be wrong.
actually matt’s leinharts gamertag is Xxsucks at footballXx
Ludacris’ gamertag is confirmed for sure because i played with him once. and bill gates is deff confirmed and matt leinharts gamertag is no that. You Cardinals hater.
I’ve played a few times with Jesse McCartney’s girlfriend. She is really cool and fun to play with. Her gamertag is XbAdXr0mAnCeX
cool famous people can someone get zac efrons real xbox live name and Daniel Radcliffe’s please
justin beiber- Camp x Sniipezz
quenton rampage jackson’s tag is : toosweetkoolaid confirmed. my friend is his trainers brother
eminem’s gamertag has been changed to MICMARLEY
confirmed: Lil Waynes GT is now salemv865
GUy Fieri gamertag is gur fieri hes fucking legit he plays call of duty and nba 2k10
“aka jro” and the gamertag nappy boi fr3sh is ufc announcer joe rogan fighter rampage jackson xbox live gamertags…… found out on spike tv the other day…… friends list isnt full either
Jason b is wrong. joe rogans gamertag is “o Catastrophic” and herb dean’s (Ufc referee) gamertag is “Undetectabie”. The L in undetectable is an I.
The jonas brothers gamertags are “aKa Jro” “aKa Zooted” “aKa Lazyy” They all made their gamertags the same because they are brothers. Also Tom from Myspace has xbl too GT: AApock
pretty much all the comments are not real gamertags so this sites pointless
@jake obviously the ones in the comments are all fake, which is why they aren’t posted in the actual post.
famous rapper bill bluckmen gamertag is bluckmen
Lil Wayness real GT- SuWoo555 i have his as a friend and played with him i make 10th lobbies thats were i met him
mine is shawnee99
Drake (Rapper)-aKa Lazyy
yo “aka jro” is for real fat joes gamertag…. all the other shit is fake but this is real….. saw cribs on mtv and it showed a message of his gamertag on it
will p is wrong. i messaged that aka jro kid and he blocked communications with me and said its not him so hes really not fat joe. will p is just lying. anyway, the only legit gamertags are the one not in the comments
@adam f More than one person has posted that “aka jro” is someone’s Gamertag, and each time it’s someone different. I wouldn’t rely on any of the comments.
ac is right. u should remove all the comments because everyone is spamming aka jro. i was talking to him and he said if they dont stop hes gonna call microsoft or something…
yea aka jro is fake. dont even bother.
yea that aka guy blocked communications with me. so hes obviously not a real celebrity
I just bought the new Ufc game and after a couple of hours playin I played this dude named ca5per86 and he said he was kimbo slice his profile is legit. His real name is kevin he pretty cool as long as u don’t try to talk to him too much
the aka guy is not legit. he blocked me and told me to fuck off
my username is RYANISCOOL1
JOSH HAMilTON 185 IS JOSH HAMILTONS USERNAME ON XBOX
Has anyone ever played with Sk1z1m? I hear he’s like an xbl legend.
Confirmed: will ferrels is RickMarshll158 and there is no a between the h and l
john cenas username is JOHN CEnA STF
You SGT VIARRUEL only play with hot chicks on xbox live. Had one chick trying to sex chat with me on xbox had her on web cam doing crazy things yo 4realz hit me up. CHICKZ ONLY!!!
Hey Does Anyone know Whats Jesse McCartney Gamer tag Is
ii P u l s e v What a legend
Robbert Pattinson GT is kcinnomis, I am his agent.
Whats Poppin’ Playa’s Naw I Changed My GT To LudaBallinT13, But Im Not Gonna Add You Guys, Sorry. But Hey I Cant Add Everyone. Sorry. Oh Lil’ Wayne Will Be Out Of Jail Soon. I Spoke To Him. Peace Everyone.
Sorry To Dissapoint Ya’ll…