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  • I love JUSTIN BIEBER HE'S HOT HOT HOT HOT HOT HOT HOT HOT HOT HOT HOT HOT HOT HOT HOT HOT HOT HOT HOT HOT HOT HOT!!!!!

  • Jb was the only boy 👎

  • Mariah : O

  • vo0to0 po0r justiin bieber

  • i think katy perry was lip singing or something becuz she waz way off the lyrics she waz ahead if u really look at it

  • los mejores!!! los amo a todos

  • i love nick mara justin bieber suck

  • I vote for JUSTIN BIEBER!!! :) I love him! <33

  • Kids vote for Kesha,Justin,Taylor and Miley.I like them too but...

    Adults vote for Mariah,Christina

    I VOTE FOR : Katy!This is not her best concert But she is amazing!K

  • stop waisting my fucking timer cunt

  • JB and MARIAH CAREY

  • OK MILEY CYRUS -voice changed sooooooooooooooooooooooooooooo­oooooooooooooooooooooooooooooo­oooooooooooooooooooooooooooooo­oooooooooooooooooooooooooooooo­oooooooooooooooooooooooooooooo­oooooooooooooooooooooooooooooo­ooooooooooooo  much!!!!!!!!!1

  • I thought it's a duet between Mariah with JB.

  • WTF?!??!

  • Especially Biebster. He's lip syncing half of the song..

  • I give credit to Miley. Of course she doesn't sing that best live it's cause she's constantly dancing. I don't like her that much,but let's be real. Non of these in this video could do it like her.

  • maraiah

  • Comment removed

  • Mariah Carey definately.

  • Taylor swift eeepppp

  • OMG Christina Aguilera's voice

  • me: why is that man wearing heals?

    sis: thats a woman....

    

  • Katy and Kesha

  • Who cares about Mariah carey when you have mariah yeater

  • JUSTIN BIEBER

  • OFCOURSE JUSTIN BIEBER AN KE$HA

  • Most powerful singer in the world? Justin Bieber? Katy Perry? Lmao!! Ok Xtina and Mariah (in her day) but Bette Midler, Celine Dion and Barbra Streisand own the lot if these!!! Find proper singers next time!

  • Mariah is definitely amazing, but she was lip syncing like she does much of the time anymore b/c I think she has wrecked her voice from singing so much... I watched that special she was in last year and you could tell she wsnt singing live. Been a fan since the beginning its disappointed.. She covers her face a lot when she's not "singing" live..

  • FoReVeR aNd AlWaYs

    KaTy PeRrY-3 &

    MiLeY cYrUs^.^

  • mariah is the best singer in the planet.nobody can compare to her perfection

  • I hate it

  • I think a tie between justin and mariah

  • DEFINITLY JUSTIN BIEBER!!

  • Wow...! Definitely Mariah Carey...:D

  • Definitely Taylor Swift!!!!!!

  • kesha is amazing

    

  • Britney Spears ¡¡¡

    

  • Wat was with Christina make up she looked like a clown lol

  • katy looks like megan fox when she look side ways

  • what does the dance have to do with country music ! ? miley shakin ass on farmers music ?

  • Mariah you the most beautiful voice I've ever heard ! LOVE YAA !

  • Awww they all did amazing♥

  • Justin <3 :D

  • love your song wow !!!!!

  • justin bieber is kidrauhl

  • hey i love you

  • I like that Katy Perry looks like a human.

  • popstar getting owned now its Justin Bieber ft Mariah Carey

    backi n the days it would be Mariah carey ft Justin bieber

  • @jonlinnes LOL that is so true!

  • DEFFINITLY JUSTIN BIEBER!!! BEEN WITH HIM ALL THE WAY AND I ALWAYS WILL BE NO MATTER WHAT!!!!!! ♥

  • X-tina & Ke$ha dont sing the enitre song

    lipsync & second voice helping u.u

  • MAriah <3 Katy Perry

    the best live performances :)

    

  • some people are getting fat o.o

  • cual es el nombre de la canción de cristina aguilera

  • what's name of this event?

  • Uhhhhhh, people that need to trick an audience into watching their video...the worst thing about youtube. Save it for Facebook friends, please don't waste my time with junk.

  • Mariah hands down. Don't hate.

  • anyone else start crying from the beautifulness from @4:49 to 5:50?

  • At my View at first I thought the drummer was Nick Cannon, But they were all awesome Mariah Carey Sooooo Blew em away!

  • I would hit mariah 

  • wow there sure are alot of guitars being abused haha

  • Justin Bieber .!

  • Not Miley Cyrus thats for sure!!!!!!

  • The truth is that Katy Peryy sang so fuuuucking good...very very few singers sing like that...BRAVO

  • stop being rudy I bet a hole lot of you sing iother ass

  • Mariah looks great after having the twins

  • Mariah Carey's singing gives me the chills.

  • Jesus fucking christ katys fucking terrible live, autotuning yourself? Come on...

  • christina may have gained wait but she can still take you down with her voice

  • katy perry lip syched.... she's not good live.. ever i heard her sing this live and it was terrible

  • I ♥ YA!! ♥♥

  • JUSTIN BIERBER AND MARIAH

  • do you ever fell like you ever seen the stars

  • katy perry rocked it

  • yawa potang youtube

  • they were all okay except miley, no one likes a stoner........

  • Miley Cyrus and Mariah Carey ♥

  • "Click Here To Kiss Justin Under The Mistletoe" IM NOT FUCKING GAY WTF !!!

  • Christina still has that amazing voice that made me say years ago when her and britney came on the scene that Brit would wane by her thirtys but I could see Christina going as long as Tina turner. Might be wrong in the long run but I find her voice beautiful

  • justin bieber!!!!!!!!!

  • Mariah Carey, what the hell u was doing, i never heard such beauty, god bless u and ur voice :) love u . LOVE UUUUUUUUUUUUUUUUU.

  • i want bieber

  • @222lateezha Dead?

  • Taylor swift all the way

  • Miley looks like she is on drugs. Deff. Christina could have done more singing. Mariah was amazing. Her voice is like angels singing. Taylor's voice sounded a bit sore but she was fabulous. Justin sounds more like a little kid now then he ever did but w.e. They're all good in their own way. I like Mariah best though.

  • THUMP UP:

    If you think Ke$ha was High when she slam the guitar on the ground.

  • Justin Bieber <333

  • Justin Bieber & Katy Perry :]

  • It's amazing-awkward how Jessie J can sing MUCH better this song than Katy.

  • Katy Perry has terrible legs.

  • @MsViridia How? Her legs are chunky and thats hot.

  • @MsViridia you have a terrible face

  • and drums

  • JUSTINBIEBER AND HIS DANCING

  • Justin BIEBER. <333, Mariah Carey, Christina Agulara, Miley cryus

  • Oh Shit! Mariah Carey is fucking amazing!!!

  • omg katy please just lip. u cant sing live.

  • @iamfazchan She can sing live O_o

  • @iamfazchan Yeaaa id like to see u sing better than that. Bhahha (:

  • @pandasNcupcakes no thanks dahlin. u dont deserve a piece of me

  • justin beieber <3333

  • mariah definitely!

  • christina, miley, taylor and katy <3, kesha mmmm mas o menos

  • Mariah Carey for sure. The best, there's no words to describe that performance.

  • Katy and Taylor <3

  • Soooooo Taylor she was great!!!! Justin was sort of good not really!!!!!!

  • yeahh! i love everyone<3 but CHRISTINA IS SO FUCKING PERFECT:)

  • everyone was great!!

  • @Katie0000011 Except BIEBAH

  • jb won

  • between taylor and justin, justin is the best!!! i love him, but taylor is also very pretty and sings so good!!!

  • mariah s the best

  • i vote for taylor, because miley dont deserve it

  • The first song is the best

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  • Mariah gave me the chills.. <3 so glad that i have her christmas album! :)

  • mariah's fat now cause of the kids but didnt she give birth a long time ago

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  • Where did justin beaver come in I skimmed through the vid

  • i like it

  • @rsdudepty lol so true XD

  • i dont understand you freakin say a song with a video with one artist and i and up getting 6 of them singing a ssong

  • CHRISTINA ALL THE WAY! I mean cmon DID YOU HEAR THAT NOTE!!!!!!!

    1. Christina and Mariah

    2. (Not a fan) Justin Bieber

    3. Katy Perry

    4. (Out of breath) Miley Cyrus

    5. Taylor Swift (she doesnt show much talent to me :\) (HORRIBLE all together, she BARELY played the guitar) Ke$ha

  • CHRISTINA ALL THE WAY! I mean cmon DID YOU HEAR THAT NOTE!!!!!!!

    1. Christina

    2. (Not a fan) Justin Bieber

    3. Katy Perry

    2. (Out of breath) Miley Cyrus

    1. (HORRIBLE all together, she BARELY played the guitar) Ke$ha

  • Katy Perry: She did good.

    Christina: Woah...stop focusing on how you look, and put some more effort into that singing.

    Mariah: ...Damn. Fucking amazing.

    Miley: Mediocre. Need to work on that breath support.

    Ke$ha: How many fucking balloons did you blow before that performance? Waay to nasal! xD

    Justin Bieber: Awesome. Super energetic and on key, and he played the drums which was a nice touch.

    Taylor Swift: Good. :)

    Just sayin'.

  • @xhiddenscars Sorry but I disagree with you about Christina she was epic in this :)

  • @musickid203 Everyone has different opinions, I respect yours completely. :)

  • @xhiddenscars lol thanks. And you replied quickly lol.

  • @musickid203 Lol. xD Well, I'm pretty bored, so when I saw someone left me a comment I turned into a ninja. xD

  • @xhiddenscars lop. Atleast you didnt argue like someone else would

  • @musickid203 Of course not, I hate motherfuckers who can't take a different opinion

  • @xhiddenscars lol thanks anyway c ya around (youtube)

  • @musickid203 To be honest I doubt we'll ever meet again lol but oh well, nice meeting you. :)

  • @xhiddenscars K, Ill send a friend request then.

  • @musickid203 Approved. :)

  • Okay...Mariah and Katy all the wayy<3

  • Christina .. DUH

  • OFCOURSE JUSTIN BIEBER!!!!!!!! LOVE JUSTIN BIEBER SO MUCH!!<3<3 BUT TAYLOR SWIFT WAS REALLY GOOD 2!!

  • 0:48

  • Christina is so amazing she beats them all but 100000000000000000

  • whats with close up of katies boobs at 51 seconds through :(

    but anyway nice outfit katy !!!!!

  • Katy perry is horrible!!

  • Kesha tries too hard but gotta give her props fer tryin

  • ik heb echt een hekel aan mariah carey alleen weet ik niet waarom xd want ze zingt facking mooi

  • i like miley's performance :)

  • aaaw!! was mariah carey pregnant there? i think she looks absolutely beautiful!

  • Taylor!!

  • JUSTIN BIEBER

  • taylor swift mariah and kate parry justin looks 12 or some thimg not hateing but come on now and kasha souds like shit live

  • ??

    

  • Justin!!!

  • justin bieber sing very much

  • @rsdudepty LOL

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  • Justin <3

  • Mariah Carey!

  • Loooved Christina Aguilera !(: Does Anyone Know What Song She Sung ?

  • @tweesagurl the song is called "show me how you burlesque" :)

  • Queen Christina Aguilera @_@ Fucking awesome !!

  • cute a.k.a comey!!!

  • pause it at 3:07!!!! Someone looks mad lol

    

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  • justin bieber. and katy perry. awesome

  • Justin,Cristina,Taylor,kesha and Mariah!

    THE BEST OF THE BESTTT!<33

    

  • I love all! My faves are jb, Christina, and just saying Kesha and Miley were totally drunk!

  • JB!

  • JUSTIN BIEBER! -3

  • Mariah Katy Taylor justin luv all

  • the lovely Mariah Carey <3

  • Justin or Katyy

  • What are Mariah and Christina even doing in this video? They have so much more experience than this other kids. If had to choose it would be Mariah all the way, living legend right there.