Adam Lambert – “Entertainment” by Dr. Luke and Claude Kelly – Next Single is a post from: American Idol Adam Lambert has turned into his own PR person on Twitter. He is scooping everybody! 1. The next single will be produced by Dr. Luke. I am jumping the gun here and assuming that it is “Entertainment” which was produced by Dr. Luke and written by Claude Kelly (who wrote Party in the U.S.A. by Miley Cyrus, My Life Would Suck Without You by Kelly Clarkson, Circus by Britney Spears, etc.) T