I've never been that lucky with celebrities, I've been to 5 Katy Perry concerts, but the last one I went to was probably the best. There was a mix up with the tickets, my mom apparently posted them on her facebook like she does with everything(it gets really annoying honestly. she still didn't learn her lesson.) but i guess someone used it to get in? Fine with me, they just moved me up right next to the stage and she made eye contact and pointed at me multiple times. I met her parents that night too, I was the only one who recognized them so good for me. They were really nice. Best night of my life. Not exactly meeting her, but still pretty good.