Less than one month after surgery, Ashley Tisdale made her first public appearance with her brand-new nose. Tisdale performed at Z100's Jingle Ball -- a concert in support of Autism Speaks -- held at New York City's Madison Square Garden on December 14. A few weeks ago, the 'High School Musical' star admitted to having a rhinoplasty on November 30 to correct a severely deviated septum. Just two days before her surgery, Tisdale hosted and performed at the 2007 Rockefeller Center Tree Lighting with fellow singer Nick Lachey.
