Katy Perry fans were probably surprised when she tweeted a "miss u baby" in the direction of Taylor Swift on Monday. As it turns out, that wasn't Perry making up with her rival pop star—Perry's account was hacked, reports US Weekly. That's quite a feat given that Perry's 89 million followers make her Twitter's most-followed person, notes People. All the fake tweets have since been removed, including some that were homophobic. The hacker, who signed off with the message, “haha follow @sw4ylol #hackersgonnahack," also appears to have made public (for a brief while, anyway) an unreleased Perry song, reports the Guardian. (More Katy Perry stories.)