A solemn-faced Katie Holmes, 30, and her 3-year old daughter, Suri Cruise, showed up at Tuesday night's taping of American Idol, witnesses told Usmagazine.com.

See How American Idol Contestants' Fashions Rate.

Little Suri, however, did not appear to be a fan of the music.

"Before they went to commercial, they showed Katie holding Suri who was holding her ears," said the witness.