In photos: 'Z100's Jingle Ball 2008'

By James Wray Dec 15, 2008, 6:00 GMT

Katy Perry attending Z100's Jingle Ball 2008 at Madison Square Garden in New York City. Photo copyright by Sylvain Gaboury / PR Photos.

Lady Gaga attending Z100's Jingle Ball 2008 at Madison Square Garden in New York City. Photo copyright by Sylvain Gaboury / PR Photos.

Katy Perry attending Z100's Jingle Ball 2008 at Madison Square Garden in New York City. Photo copyright by Sylvain Gaboury / PR Photos.

12/12/2008 - Ashley Tisdale - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - David Archuleta - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - Rihanna - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - Leona Lewis - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - Rihanna - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - David Archuleta - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - Jesse McCartney - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - Brandy - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - Rihanna - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - The Veronicas - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - Ne-Yo - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - David Archuleta - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - Rihanna - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - Leona Lewis - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - Katy Perry - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos

12/12/2008 - Lady Gaga - Z100's Jingle Ball 2008 - Press Room - Madison Square Garden, 4 Penn Plaza at 34th Street - New York City, NY, USA © Sylvain Gaboury / PR Photos