I liked the Army chick, she was an alright singer, and cute.
I went to bed after the first hour (work at 2am). I didn't see the Klingon or Scooter girl.
The Dean Martin guy almost blew it by starting out as a gimmick. I didn't think much of the singing brothers (Jesus and Noel), but they seemed to like them. Scatgirl was the shit...I wonder if these people stop and think "would someone actually pay to hear this?"