These are pictures from her performance tonight at Z100's Jingle Ball. Not only did she get a complete nose reconstruction - the bridge as well as the tip, which has nothing to do with a deviated septum - she also appears to have gotten collagen on her upper lip and she got her birthmark removed <-- still there, sry. Still. "Not a fan of cosmetic surgery," my ass, Tisdale.
Just for comparison's sake, this was Ashley 3 weeks ago: