ContactMusic — Katy Perry is planning to become an art collector.The 'Teenage Dream' singer has decided to add another string to her bow by investing in fine art... more info

ContactMusic — Katy Perry and Pharrell Williams were among the stars who helped raise $2.4 Million (£1.5 million) at the Museum of Contemporary Art's 35th... more info

ContactMusic — Katy Perry wants ''slime green'' coloured hair.The 'Roar' singer - who is known for her jet black locks, but has also dyed it pink, electric blue,... more info

Stereogum — As we recently reported, Owen Pallett took up the challenge of analyzing a pop song using music theory. It was Katy Perry’s “Teenage Dream,” and it was a great read, but perhaps the best part of that article was when he ended with a tease about... more info

ContactMusic — Katy Perry went on a date with rapper Riff Raff.The 'Roar' singer seems to be putting her split with John Mayer firmly behind her since she was... more info

TMZ — Katy Perry's rebound after John Mayer -- Riff Raff?!!? Strange as it sounds ... we got the rapper talking all about his night with Katy -- but who brags about hooking up with one chick WHILE there's a different chick grinding on your crotch? Riff… ... more info

TMZ — Katy Perry's got an unlikely new BF -- rapper Riff Raff -- at least that's on Riff Raff's wish list ... because he's SMITTEN after the two went on a date last week ... despite his obvious addiction to other women in thong bikinis.Raff was out in… ... more info

Stereogum — Last week Music Critic Twitter was all aflutter in response to Ted Gioia’s Daily Beast essay about how music journalism has devolved into lifestyle reporting because American Idol judges don’t know what a pentatonic scale is or something. Essenti... more info

MTV.com News — Fellow COVERGIRL Becky G will join Katy for stops in Texas and Mexico. By MTV News Staff more info

ContactMusic — Stars including Adele, Katy Perry, Ed Sheeran and Gwyneth Paltrow have shared candid self-portraits online in support of World Water Day.A number of... more info