Post Malone has recruited 21 Savage for his new track "Rockstar." The track is allegedly off of Malone's upcoming sophomore project Beerbongs and Bentleys. Today the rapper was also featured on Lorde's remix of her track "Homemade Dynamite" alongside SZA and Khalid. 21 Savage recently collaborated with Nicki Minaj, Offset, and London On Da Track for "No Flag" and released his album Issa Album back in June. Listen to "Rockstar" now on iTunes and Apple Music.