Singer/songwriter Selena Gomez attends the Z100's iHeartRadio Jingle Ball 2015 at Madison Square Garden on December 11, 2015 in New York City.
Selena Gomez attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Selena Gomez attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Selena Gomez attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Selena Gomez attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Selena Gomez attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Demi Lovato attends the 2015 Y100 Jingle Ball at BB&T Center on December 18, 2015 in Sunrise, Florida.
Demi Lovato attends the 2015 Y100 Jingle Ball at BB&T Center on December 18, 2015 in Sunrise, Florida.
Demi Lovato attends the 2015 Y100 Jingle Ball at BB&T Center on December 18, 2015 in Sunrise, Florida.
Demi Lovato attends the 2015 Y100 Jingle Ball at BB&T Center on December 18, 2015 in Sunrise, Florida.
Demi Lovato attends the 2015 Y100 Jingle Ball at BB&T Center on December 18, 2015 in Sunrise, Florida.
Sunrise, FL-- Demi Lovato attends the 2015 Y100 Jingle Ball at BB&T Center on December 18, 2015 in Sunrise, Florida.
Joe Jonas attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Hailee Steinfeld attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Hailee Steinfeld attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Demi Lovato attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Lauren Cohan attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Michael J. Fox attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Ryan Seacrest attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Hailee Steinfeld attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Chloe Grace Moretz attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Demi Lovato attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Hailee Steinfeld attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Nick Jonas attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Nick Jonas attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Kelsea Ballerini attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Ryan Seacrest attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Chloe Grace Moretz attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Nick Robinson attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Alex Roe attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Ryan Seacrest attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Joe Jonas attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Ryan Seacrest attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Mehmet Oz attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Mehmet Oz attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Chloe Grace Moretz attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Joe Jonas attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Joe Jonas attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Joe Jonas attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Joe Jonas attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Joe Jonas attends Z100's iHeartRadio Jingle Ball 2015 arrivals at Madison Square Garden on December 11, 2015 in New York City.
Musician Alessia Cara attends the Z100's iHeartRadio Jingle Ball 2015 at Madison Square Garden on December 11, 2015 in New York City.
Jason Binn and family attends the Z100's iHeartRadio Jingle Ball 2015 at Madison Square Garden on December 11, 2015 in New York City.
Conrad Sewell attends the Z100's iHeartRadio Jingle Ball 2015 at Madison Square Garden on December 11, 2015 in New York City.
Conrad Sewell attends the Z100's iHeartRadio Jingle Ball 2015 at Madison Square Garden on December 11, 2015 in New York City.
Conrad Sewell attends the Z100's iHeartRadio Jingle Ball 2015 at Madison Square Garden on December 11, 2015 in New York City.