On American Idol Kara DioGuardi works hard to fend off criticism that she sucks as a judge. After her first time singing on TV during Lopez Tonight, however, we're pretty convinced of her vocal talent. Video of her performance inside.

Tonight, DioGuardi took the stage and performed "Terrified," a song Idol fans may recall was performed on the talent show by the now-ousted Didi Benami. While Benami's performance helped cement her place in the Idol top 12, DioGuardi's performance proves that maybe we've been wrong about the judge all along.

...At least until she opens her mouth tomorrow night.