Post Malone & 21 Savage Unite for 'Beerbongs and Bentleys' Single "Rockstar"

With the weekend almost here, Post Malone is busy being a hard-working artist; in the past 24 hours alone, the "Congratulations" crooner has already appeared on a "Homemade Dynamite" remix with Lorde, SZA and Khalid and delivered a cover of Nirvana's "All Apologies." Now, we're being treated to an official new single from Post Malone. Linking up with fellow new-school star 21 Savage, Post Malone cooks up the melodic "Rockstar." Billed as the lead single in support of Post Malone's anticipated so...