Taylor Swift Oh-so-tech-savvy Taylor Swift recently discovered a college group called the Tritones singing her smash hit, 'You Belong With Me,' a capella on YouTube (watch the video below). The country superstar was so enchanted by the honeyed blend of voices in UC San Diego's 16-voice group that she reportedly tracked down their student manager to ask if they'd be interested in recording another of her songs.

Taylor then took it one step further, inviting the Tritones to sing with her on Sunday night's ACM Awards at the MGM Grand Garden Arena in Las Vegas. They'll perform together live this Sunday night (April 18) at 8:00 PM ET on CBS.

Taylor is nominated for five awards -- Top Female Vocalist, Song of the Year for 'You Belong With Me' (both artist and songwriter), Video of the Year for 'You Belong With Me,' and for Entertainer of the Year, which is fan-voted this year.

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