Kristy Lee Cook leaves American Idol

Kristy Lee Cook was voted off American Idol tonight during an hour-long results show featuring a performance by Mariah Carey.

Kristy has hovered in the bottom three recently, and was joined there tonight by Brooke White and Syesha Mercado. Ryan brought each contestant out onto the stage and separated the first six into two groups, one by one. David C., Kristy and Brooke were grouped together with Syesha, Jason Castro and Carly Smithson on the other side. At the last minute, Ryan made a pun about having "too many cooks in the kitchen" and switched David C. and Syesha, leaving Brooke, Kristy and Syesha on one side. Then, Ryan used David Archuleta as the tiebreaker.

This week's theme was Mariah Carey songs, and she helped to mentor the contestants to prepare them for their performances.

Hands-down, the best performance of the week went to David C., who sang his own arrangement of "Always Be My Baby." Randy bestowed his first standing ovation of the season on David after the performance, and the judges' praises left him teary-eyed.