In Kanye West's song "Famous," he took a dig at Taylor Swift, rapping "I feel like me and Taylor might still have sex/Why? I made that bitch famous." But the lyrics to a leaked demo version of the song actually have Swift owing West sex, and not just Swift, but his ex Amber Rose, too.
According to Complex, the original track, which has since been pulled from Soundcloud, featured the lyrics: "For all my Chi-town ni**as that know me best/I feel like Taylor Swift still owe me sex/Why? I made that bitch famous."
The original lyrics were already controversial, because Swift claimed she didn't know West was going to call her out in the song. A video later released by West's wife (Kim Kardashian West) of a phone conversation West had with Swift shows that's not entirely true—she did seem to know about the "might still have sex" part. However, at no point did he tell her he also called her a "bitch" in the song.
Another verse had West claiming Rose still owes him sex: "For all my Chi-town ni**as that know me best/I feel like Amber Rose still owe me sex/Why? I made that bitch famous/Not really, but somewhat famous."
The demo version also had a slower tempo, featured a Young Thug verse, and was missing the Rihanna hook that ended up on The Life of Pablo album version.
Here's the video for the version that was released, on the off chance that you've never heard it (and in that case, where have you been?).