The Band Perry took to the stage at the 2014 CMA Awards for a very special rendition of one of Glen Campbell's signature hits.

The sibling trio performed their current single, a cover version of 'Gentle on My Mind' that comes from the soundtrack to the new documentary 'Glen Campbell: I'll Be Me.' Their arrangement was just different enough to make it their own, but still paid close attention to the original track, with Kimberly Perry delivering the song in a higher key and featuring the stacked harmonies of her brothers.

The track is unlike anything else at country radio now, with unique string lines and changes in tempo and mood that underscore its unique qualities.

The Band Perry are also nominated for Vocal Group of the Year at the awards show.

See the Top 5 Moments From the 2014 CMA Awards