It looks like the Grammys liked Post Malone's performance with Aerosmith at the Video Music Awards so much they wanted to do their own version of it. On the red carpet tonight, RCHP revealed that Posty asked them to join him onstage and they were down. Sitting on a stool with a guitar, Malone sang a snippet of "Stay." "Rockstar" is up for Record of the Year and Best Rap/Sung Performance, and although 21 Savage couldn't make it to the award show this year because of his deportation case, the beerbongs & bentleys singer carried on alone. The true collaboration came when the California band and Malone rocked out to "Dark Necessities." Watch a clip of the performance below.
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