PEOPLE's Week in Photos

Get the hottest celebrity news in pictures, including Sandra Bullock, Ashlee Simpson, Anna Nicole Smith and more. By Janice Morris

LOUDEST THUMBS DOWN

Orange Bowl fans let Ashlee Simpson have it during her performance at the game's halftime show on Jan. 4. The "La La" singer, 20, got a stadium's worth of boos hurled at her during an attempted high note. Just as she crooned "You make me want to scream," Simpson's voice faltered before the 72,000 fans at the USC-Oklahoma game. The incident comes just months after Simpson was caught lip-synching in a now-infamous glitch on Saturday Night Live.