Recording artists 21 Savage (L) and Post Malone appear backstage after winning the top Rap Song award for 'Rockstar,'' during the 2018 Billboard Music Awards at MGM Grand Garden Arena on May

Download this stock image: Recording artists 21 Savage (L) and Post Malone appear backstage after winning the top Rap Song award for 'Rockstar,'' during the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, Nevada. Photo by Jim Ruymen/UPI - TYA31E from Alamy's library of millions of high resolution stock photos, illustrations and vectors.

21 Savage and Post Malone at the 2018 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2018 in Las Vegas, USA Stock Photo - Alamy

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21 Savage, left, and Post Malone pose with their award for song of the year for Rockstar in the press room at the MTV Video Music Awards at Radio City Music Hall

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21 Savage, left, and Post Malone pose with their award for song of the year for Rockstar in the press room at the MTV Video Music Awards at Radio City Music Hall

LAS VEGAS - MAY 20: 21 Savage, Post Malon at the 2018 Billboard Music Awards at MGM Grand Garden Arena on May 20, 2018 in Las Vegas, NV Stock Photo - Alamy

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