Kara dioguardi leaves American Idol
``I felt like I won the lottery when I joined American Idol two years ago, but I feel like now is the best time to leave Idol,'' Kara said.
Kris Allen and Adam Lambert battled it out for the title of ``American Idol'' on Monday evening, but the third round of competition took a twist when Kara DioGuardi asked the public not to judge the younger singer on his version of a song she co-wrote.