I Kissed A Girl singer Katy Perry says it was only because of pop queen MadonnasMadonna: Truth or Dare, her forthcoming documentary film Part Of Me has been possible. Katy saidthat the 3D concert movie, which is due in theatres in July, is inspired by the 1991 film of Madonna,Contactmusic reported. "Madonna is everything to me, and that movie is amazing, because it caught herat a time when she was a bit more vulnerable. I wanted to do that too, to capture a snapshot of who Iam now so that I can remind myself what I've lost if I ever do become totally jaded," the pop star said.Perry had recorded her California Dreams Tour for Part Of Me. The documentary will have live footageof the show as well as some scenes dealing with her personal life problems like her recent split withhusband Russell Brand.