The Weeknd and Ariana Grande have teamed up to perform their ‘Save Your Tears’ remix as part of this year’s iHeartRadio Music Awards at Los Angeles’ Dolby Theatre.The Weeknd began the performance alone onstage to a masked audience, before being joined by Grande, who delivered her new verse and duetted on the chorus.The collaborative remix arrived back in April alongside an accompanying, sci fi-styled animated music video.