Carrie Underwood and Sam Hunt performed their song “Heartbeat” for the first time onstage at the 58th Grammy Awards. Underwood’s latest single off her Storyteller album, the studio version of the power ballad features Hunt supplying harmonies, but on the Grammy stage, the Best New Artist nominee took his own verse,…

Source: RollingStone
Link: See Carrie Underwood and Sam Hunt's 'Heartbeat' Mash-up on the Grammys