Katy Perry's Twitter account is hacked and song leaked

Homophobic abuse is tweeted to singer's 89 million followers and love messages sent to her arch rival Taylor Swift

Twitter's top user and pop superstar Katy Perry was hacked on Monday, with her account sending abusive tweets to her 89 million followers and reportedly leaking an unreleased song.

The tweets removed from Perry's account page, the most followed on Twitter, beating Justin Bieber and Taylor Swift, sent homophobic messages to users and a "miss u baby" message to the singer's arch rival Taylor Swift among others.