Post Malone and 21 Savage put together something special with their new single “Rockstar” and it has hit written all over it. Only time will tell if it joins Post’s 4 other platinum singles. Stream the new single below. [arve url=”https://embed.spotify.com/?uri=spotify%3Aalbum%3A1YCRXKLDRB0UnbrFUJ4F6e” /]