MUST WATCH: Toni Braxton wows with powerful rendition of 'Un-Break My Heart' Updated Scenic Drive With Rian Share this: The iconic song won a Grammy in 1997 and is one of the best-selling singles of all time. Instagram/ Toni Braxton Toni Braxton is one of the world's most talented and well-known singers. With several awards behind her name, she once again showed followers and fans why she is unbreakable. On Sunday night, Braxton shared a video of her singing her hit single, 'Un-Break My Heart', the song which attained commercial success worldwide. The song won Best Female Pop Vocal Performance at the 39th Annual Grammy Awards in 1997.