Move aside Taylor vs Kanye, the Taylor vs Katy beef is back... and, in fact, come back Kanye because you're also kinda involved!
Earlier this week, the 'California Girls' singer attended Kanye West's concert in LA and obvy couldn't help herself to not sing along to the rapper's infamous diss line about lil ol' T-Swift.
Ya know the one... "I feel like me and Taylor might still have sex. Why? I made that b*tch famous!"
We suppose there is the possibility that Katy just happens to really like this lyric but.....................