TMZ — We now know how Katy Perry's name ended up on the official registration of a song the media claims is a hit piece targeting Taylor Swift ... Katy had nothing to do with it, but a producer who once worked with her did. The song -- "1984" -- was… ... more info

Perez Hilton — Yeah… we're calling bull on this. Remember how we told you about Katy Perry's diss track towards Taylor Swift called 1984?? Well, it seems as though KP's people didn't love that most fans were siding with Tay Tay, because now they're saying the son... more info

MTV.co.uk News — Reports claim K-Pez may recruit some of her own showbiz pals for the diss track promo... more info

E! Online — Taylor Swift can't pull a surprised face on this one! Katy Perry has reportedly registered the song title "1984" with her music publisher, BMI. Many are speculating that this... more info

Stereogum — Taylor Swift has never come out and said that “Bad Blood,” her 1989 track and recent #1 single, is a dis song about Katy Perry. She’s told Rolling Stone that it’s about another singer and that the two are “straight-up enemies,” but that�... more info

MTV.co.uk News — Can’t we all just be friends? more info

Perez Hilton — It's no secret that there's a bit of a feud between pop superstars Katy Perry and ​Taylor Swift — so much so that their mutual friends have been dancing between them recently! But now, we have something even juicier than that — Katy may be taki... more info

Perez Hilton — Matchmaker, matchmaker make us a match! ICYMI: On Tuesday, it was revealed that Ellie Goulding was the mastermind behind Taylor Swift and Calvin Harris' relationship. [ Related: Ellie Explains Why She Deleted Her Pic With Katy Perry! Deets HERE! ] Th... more info

Perez Hilton — We didn't think there would be any Bad Blood between Taylor Swift and any of her castmates/BFFs/squad from her latest music video. But maybe there's trouble in paradise! Are her besties Ellie Goulding — who appeared in Tay's revenge video — and L... more info

MTV.co.uk News — You made a really deep cut and, baby, now we got bad blood... more info