Singer Lady GaGa performs on stage during Z100's Jingle Ball at Madison Square Garden on December 12, 2008 in New York City.
Jennifer Lopez during Z100s Jingle Ball 2003 - Show at Madison Square Garden in New York City, New York, United States.
Beyonce Knowles during Z100's Jingle Ball 2002 - Show at Madison Square Garden in New York City, New York, United States.
Usher and Justin Bieber perform onstage during Z100's Jingle Ball 2009 at Madison Square Garden on December 11, 2009 in New York City.
Taylor Swift performs during Z100's Jingle Ball 2012 presented by Aeropostale at Madison Square Garden on December 7, 2012 in New York City.
Taylor Swift performs onstage during Z100's Jingle Ball 2009 at Madison Square Garden on December 11, 2009 in New York City.
Musician Justin Bieber performs onstage during Z100's Jingle Ball 2016 at Madison Square Garden on December 9, 2016 in New York, New York.
Justin Bieber performs onstage during Z100's Jingle Ball 2012, presented by Aeropostale, at Madison Square Garden on December 7, 2012 in New York...
Harry Styles of One Direction performs onstage during Z100's Jingle Ball 2012, presented by Aeropostale, at Madison Square Garden on December 7, 2012...
Shawn Mendes performs onstage during Z100's Jingle Ball 2018 at Madison Square Garden on December 07, 2018 in New York City.
Khalid and Normani perform at Z100's Jingle Ball 2018 at Madison Square Garden on December 7, 2018 in New York City.
Taylor Swift performs onstage during Z100's Jingle Ball 2012, presented by Aeropostale, at Madison Square Garden on December 7, 2012 in New York City.
Justin Bieber and Ed Sheeran attend backstage at Z100's Jingle Ball 2012, presented by Aeropostale, at Madison Square Garden on December 7, 2012 in...
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 attends 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.
Jonas Brothers perform at Z100's Jingle Ball 2007 at Madison Square Garden on December 14, 2007 in New York City.
Ramona Singer attends Z100's Jingle Ball 2016 at Madison Square Garden on December 9, 2016 in New York City.
Pharrell attends the Z100's Jingle Ball at Madison Square Garden on December 12, 2014 in New York City.
Pharrell attends the Z100's Jingle Ball at Madison Square Garden on December 12, 2014 in New York City.
Anna Kendrick attends Z100s Jingle Ball 2013, presented by Aeropostale, at Madison Square Garden on December 13, 2013 in New York City.
Anna Kendrick poses backstage at Z100's Jingle Ball 2013, presented by Aeropostale, at Madison Square Garden on December 13, 2013 in New York City.
Anna Kendrick poses backstage at Z100's Jingle Ball 2013, presented by Aeropostale, at Madison Square Garden on December 13, 2013 in New York City.
Anna Kendrick speaks onstage during Z100's Jingle Ball 2013, presented by Aeropostale, at Madison Square Garden on December 13, 2013 in New York City.
Actress Anna Kendrick speaks onstage during Z100's Jingle Ball 2013, presented by Aeropostale, at Madison Square Garden on December 13, 2013 in New...
Selena Gomez performs onstage during Z100's Jingle Ball 2013, presented by Aeropostale Madison Square Garden on December 13, 2013 in New York City.
Taylor Swift and Ed Sheeran attend Z100's Jingle Ball 2012, presented by Aeropostale, at Madison Square Garden on December 7, 2012 in New York City.
Singer Lady Gaga performs onstage during Z100's Jingle Ball 2011, presented by Aeropostale at Madison Square Garden on December 9, 2011 in New York...
Beyonce Knowles during Z100s Jingle Ball 2003 - Show at Madison Square Garden in New York City, New York, United States.
Kanye West during Z100's Jingle Ball 2005 - Backstage and Audience at Madison Square Garden in New York City, New York, United States.
Justin Timberlake during Z100's 5th Annual "Jingle Ball" - December 17, 1998 at Madison Square Garden in New York City, New York, United States.
Madison Beer attends Z100's Jingle Ball 2018 at Madison Square Garden on December 07, 2018 in New York City.
Meghan Trainor performs at Z100's Jingle Ball 2018 at Madison Square Garden on December 7, 2018 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.
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...
John Mayer and Taylor Swift perform onstage during Z100's Jingle Ball 2009 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.
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 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.
Sam Smith performs onstage during Z100's iHeartRadio Jingle Ball 2017 at Madison Square Garden on December 8, 2017 in New York City.
Singer Lady GaGa poses backstage during Z100's Jingle Ball 2008 Presented by H&M at Madison Square Garden on December 12, 2008 in New York City....
Katy Perry performs on stage during Z100's Jingle Ball 2008 Presented by H&M at Madison Square Garden on December 12, 2008 in New York City.
Ashley Tisdale and The Veronicas pose backstage during Z100's Jingle Ball 2008 Presented by H&M at Madison Square Garden on December 12, 2008 in New...
Ashley Tisdale, The Veronicas and Katy Perry pose backstage during Z100's Jingle Ball 2008 Presented by H&M at Madison Square Garden on December 12,...
Brandy and Lady GaGa pose backstage during Z100's Jingle Ball 2008 Presented by H&M at Madison Square Garden on December 12, 2008 in New York City....
Jonas Brothers backstage at Z100's Jingle Ball 2007 at Madison Square Garden on December 14, 2007 in New York City.
Singers Nick Carter, Howie Dorough, Brian Littrell and A.J. McLean of the Backstreet Boys perform onstage during Z100's Jingle Ball 2007 at Madison...
Jonas Brothers attends Z100's Jingle Ball artist gift lounge at Madison Square Garden on December 14, 2007 in New York City.
Actress/singer Ashley Tisdale during the pre-show for Z100's Jingle Ball 2007 at Madison Square Garden on December 14, 2007 in New York City.
Ellie Goulding performs onstage during Z100's Jingle Ball 2016 at Madison Square Garden on December 9, 2016 in New York City.
Musician Justin Bieber performs onstage during Z100's Jingle Ball 2016 at Madison Square Garden on December 9, 2016 in New York, New York.
Camila Cabello and Shawn Mendes perform onstage during Z100's iHeartRadio Jingle Ball 2015 at Madison Square Garden on December 11, 2015 in New York...
