Ashley Tisdale Zips to Z100

Ashley Tisdale poses with former 98 Degress singer Nick Lachey in the press room during Z100′s Jingle Ball at Madison Square Garden New York City on Friday night.

The pretty pair hosted the event while Chris Brown, Rihanna, Ne-Yo, Jesse McCartney, David Archuleta, Brandy and others took to the stage.

Check out pics of David Archuleta and Jesse McCartney at Jingle Ball!

25+ pictures of Ashley Tisdale and Nick Lachey zipping to Z100…