In an emotional performance, country pop trio Rascal Flatts brought their mega-hit 'I Won't Let Go' to Blake Shelton's 'Healing in the Heartland' benefit on Wednesday night (May 29).

The song was a perfect choice, with its lyrics about overcoming storms that cut a path through your life. The superstar trio delivered it in a stripped-down acoustic version that highlighted the strength of the song, seated and in a perfectly restrained rendition.

It was a great choice for the band, letting them showcase their strong vocal harmonies as well as Gary LeVox' signature lead vocals. "God bless Oklahoma!" he shouted, encouraging everyone at home to call, text and go online to donate money to the relief efforts.

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