Kanye West's feud with Jay-Z stems from the rapper "forcing Kim Kardashian West" on the Carters.
The 40-year-old musician and Jay, 47, have gone through a very public falling out over recent months and the source of their dispute is reportedly Kim, Kanye's wife.
During a concert in Inglewood, California, in 2016, Kanye ranted: "Beyonce, I was hurt. I went down seven years on behalf of your fake s**t."
He later added: "Jay-Z. Call me bro, you still ain't call me ... I know you got killers, please don't send them at my head."
At the time, it wasn't apparent why Kanye was angry at Jay and his wife Beyonce, having previously collaborated with the pair and been close friends with them, also.