After a successful collaboration a couple months back on her “Cockiness” remix, Rihanna made the announcement yesterday that she will be bringing A$AP Rocky along on the U.S. leg of her Diamonds tour that kicks off in March. In a new vlog released by Rock today, they talk to Rih backstage at his show in L.A., who gives some insight as to why she chose the Harlem newcomer. Check out the video below!