John Mayer and Justin Bieber attends Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Musician Adam Young of Owl City attends the H&M Artist Gift Lounge at Z100s Jingle Ball at Madison Square Garden on December 11, 2009 in New York...
Usher and Justin Bieber perform onstage during Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York...
Usher, Taylor Swift and Justin Bieber attends Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Ke$ha performs onstage during Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Usher and Justin Bieber perform onstage during Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York...
Justin Bieber performs onstage during Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Martin Johnson of Boys Like Girls attends the Z100's Jingle Ball 2009 - Official H&M Artist Gift Lounge Produced by On 3 Productions at Madison...
Singer Jordin Sparks attends the Z100's Jingle Ball 2009 - Official H&M Artist Gift Lounge Produced by On 3 Productions at Madison Square Garden on...
Martin Johnson of Boys Like Girls performs onstage with Taylor Swift performs onstage during Z100's Jingle Ball 2009 presented by H&M at Madison...
Singer Ke$ha performs at Z100's Jingle Ball 2009 Pre-Show at Hammerstein Ballroom on December 11, 2009 in New York City.
Singer Ke$ha performs at Z100's Jingle Ball 2009 Pre-Show at Hammerstein Ballroom on December 11, 2009 in New York City.
Singer Ke$ha attends Z100's Jingle Ball 2009 Pre-Show at Hammerstein Ballroom on December 11, 2009 in New York City.
Singer Ke$ha performs at Z100's Jingle Ball 2009 Pre-Show at Hammerstein Ballroom on December 11, 2009 in New York City.
Taylor Swift attends Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Taylor Swift performs onstage during Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Taylor Swift attends Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Actor Judah Friedlander attends the Z100's Jingle Ball 2009 - Official H&M Artist Gift Lounge Produced by On 3 Productions at Madison Square Garden...
Justin Bieber performs onstage during Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Usher and Justin Bieber performs onstage during Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York...
Justin Bieber performs onstage during Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Justin Bieber performs onstage during Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Justin Bieber performs onstage during Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Ke$ha attends Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Taylor Swift and Justin Bieber attend Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Singer Ke$ha attends Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Singer Ke$ha attends the Z100's Jingle Ball 2009 - Official H&M Artist Gift Lounge Produced by On 3 Productions at Madison Square Garden on December...
Singer Ke$ha attends the Z100's Jingle Ball 2009 - Official H&M Artist Gift Lounge Produced by On 3 Productions at Madison Square Garden on December...
Taylor Swift performs onstage during Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Taylor Swift attends Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Singer Justin Bieber attends the Z100's Jingle Ball 2009 - Official H&M Artist Gift Lounge Produced by On 3 Productions at Madison Square Garden on...
Musician Kris Allen attends the Z100's Jingle Ball 2009 - Official H&M Artist Gift Lounge Produced by On 3 Productions at Madison Square Garden on...
Singer Adam Lambert attends the Z100's Jingle Ball 2009 - Official H&M Artist Gift Lounge Produced by On 3 Productions at Madison Square Garden on...
Singer Jordin Sparks attends the H&M Artist Gift Lounge at Z100s Jingle Ball at Madison Square Garden on December 11, 2009 in New York City.
Actress Anika Noni Rose attends the Z100's Jingle Ball 2009 - Official H&M Artist Gift Lounge Produced by On 3 Productions at Madison Square Garden...
Mark Indelicato attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Carolina Bermudez attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Kelly Bensimon attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Stormi Bree Henley, Miss Tennessee Teen USA attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New...
Miranda Cosgrove attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Peter Facinelli attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
John Keefe, Martin Johnson, Paul DiGiovanni and Bryan Donahue of Boys Like Girls attend the Z100s Jingle Ball 2009 presented by H&M at Madison Square...
Leighton Meester attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Leighton Meester attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Leighton Meester attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Leighton Meester attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Justin Bieber attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Orianthi attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Justin Bieber attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Singer Adam Lambert attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Singer Ke$ha attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Singer Adam Lambert attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Singer Ke$ha attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Singer Ke$ha attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Singer Ke$ha attends the Z100s Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Singer Adam Lambert attends Z100's Jingle Ball 2009 at Madison Square Garden on December 11, 2009 in New York City.
Ke$ha attends Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Taylor Swift and Justin Bieber attends Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Leighton Meester attends Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.
Singer Kriss Allen attends Z100's Jingle Ball 2009 presented by H&M at Madison Square Garden on December 11, 2009 in New York City.