From Jay Z and Bey to Dr Dre and Eminem, this is what happens when two of the best team up.
But Twitter is really confused as to why.
Everyone is still getting familiar with A$AP Rocky's new album 'At.Long.Last.A$AP,' which has just dropped - one week ahead of schedule.
But one lyric on A$AP's second studio album instantly stood out, as it features a particularly personal diss aimed at Rita Ora.
On the second verse of album track 'Better Things', the A$AP mob chief takes aim at the 'New York Raining' singer, saying that she has a "big mouth."
"I swear that b**** Rita Ora got a big mouth/ Next time I see her might curse the b**** out/ Kicked the b**** out once cause she b****ed out," he raps on the song.
It's unknown what exactly went on between A$AP and Rita to cause such a public diss, but speculation on social media suggests the two have hooked up in the past.
Lmaoo why Asap Rocky taking shots at Rita Ora??— jaywop (@Olufemi_J) May 26, 2015
What happened between asap rocky and rita ora— rina (@rinaramaj) May 26, 2015
ASAP rocky kinda mean for that Rita Ora verse.. Not needed lol— Oyinkan Z.A. (@OAdeshoye) May 26, 2015