Katy Perry talks about partying with Rob

She told thehothits.com, "There wasn't really any partying, cause when I party I party! I party like Andrew W K style, I crowd surf!"

"But no we were just hanging out, I love Selena and we have a lot of mutual friends and Justin's always been so nice to me and Robert somehow got stuck in all of this!"

Full Article + video: source  but looks like it's for Australia only.

Via  | RPLife