E! Online — Katy Perry has a heartfelt message to those feeling the tragic effects of bullying. The "Firework" singer posted a lengthy inspirational note on Instagram today in an attempt to... more info

Starpulse — Katy Perry and Robert Pattinson crashed a California wedding over the weekend, sparking new rumors that the couple may be headed for a hookup. Last week, Pattinson and girlfriend Kristen Stewart w... more info

Starpulse — Katy Perry and John Mayer sparked some new 'are-they-or-aren't-they' rumors over the weekend, when the two reunited at Katy's Memorial Day barbecue. Perry threw a bash at her Hollywood Hills home ... more info

People.com — "It was extra exciting" for the bride and groom, a family member tells PEOPLE PEOPLE more info

Big Apple Music Scene — While you were trying to decide how to celebrate Memorial Day in the rain, Katy Perry and John Mayer were up to their usual mischief -- namely, toying with the media's emotions about whether they are or aren't together. More »Katy Perry And John Ma... more info

Jam! Showbiz Music, Canada — Former lovers John Mayer and Katy Perry reunited on Memorial Day when the I Kissed A Girl singer opened her Hollywood Hills home to friends for a summer party. more info

411 Mania — Over a comment made on Twitter... more info

People.com — But a guest tells PEOPLE, "there was no PDA" shown between the pals at romantic San Ysidro Ranch more info

Starpulse — Earlier this week, Katy Perry slammed Chief Keef's latest single "Hate Bein' Sober," and now she's apologizing to the rapper for her comments. more info

Consequence of Sound — Chicago rapper continues to draw attention for all the wrong reasons. more info