The unlikely pair (who met on the set of The Voice, where both are coaches) joined forces for the first time on “Go Ahead,” which entered at No. 70 on last week’s Hot 100 chart. For their Billboard Music Awards performance, Shelton started off solo onstage, and then was joined by Stefani, who was wearing a showstopping, rhinestone-encrusted gown. Facing each other, the pair sang their romantic tune, wrapping things up with a chaste hug.
Watch the couple perform at the Billboard Music Awards below.