Katy Perry Working On New Songs With Bonnie McKee
"We were just in Santa Barbara and we wrote three or four songs, I guess. So I have four songs with her coming out," McKee told MTV News. "I think it's a little bit more grown up and it's really interesting.
"I'm really excited for the world to hear it because she's taking a new approach. I don't want to say too much about it, but it's definitely different. It's definitely a little more mature than the 'California Gurls' of yesterday."