The '22' star was amused at a comment from the 'I Kissed A Girl' singer on the social networking site.
Katy Perry: "New Album Will Get Back To My Roots"
The 'California Gurls' star says she is keen to show off a new side on the follow-up to 'Teenage Dream'.
Katy Perry says she is ready to start working on her third studio album and says she wants to get back to her roots on the record.
The 'Last Friday Night (T.G.I.F.)' singer says though she would be happy to record another pop album, she is also keen to move in a different direction from sophomore release 'Teenage Dream' .
"I'm going to stick my finger out there and test the waters of what the world wants, or what I need to say," Katy told MTV News. "But I'm all ears. If people want me to do another pop record I can do another pop record. I definitely have a lot to say right now.
"I just think that it's time for me in some way to show where I came from," Katy teased. "I've always just been me and my guitar, and I'm not saying I'm going to make that record, but I do want to get back to my roots."
The 'Firework' singer added: "I've been changing my hair colour too much!"
Earlier today Katy confirmed that her new single 'Part Of Me' was written about two years ago and is not about her recent split from comedian husband Russell Brand.
Katy Perry is due to release her album rerelease 'Teenage Dream', including several brand new tracks, on 13th March.
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