OK, so using phrases like "cat fight" is immature. Well, we never said we were mature and anyway, we're writing about Katy Perry here. It seems she annoys more that just snarky American bloggers. Brit singer Lily Allen has dissed the "I Kissed a Girl" singer, saying Perry copped Allen's own style.
According to Gigwise, Allen went on record as saying she knows "for a fact" Perry was signed by Allen's record label to be an "American version" of Allen. Read a little closer, though, and you'll notice that Perry herself may have started this beef, since (according to Allen) she once described herself as a "fatter version of Amy Winehouse and a skinnier version of Lily Allen."
Says Allen: "It's like, you're not English and you don't write your own songs, shut up!"