Talk about ending on a high note! In what was one of the most jaw-dropping performances of the 'Grammy Nominations Live' concert Wednesday night on CBS, Sugarland closed the show with Lady Gaga in a duet of the pop sensation's 'You and I.' An unlikely pairing? You may not think so after watching, as Gaga and the country duo's Jennifer Nettles trade lead vocals flawlessly, and with an infectious energy. Watch their performance below.

Kanye West and Adele lead the pack of 2012 Grammy nominees, with seven nods for the rap icon and six for the soulful pop singer. In the country categories, Taylor Swift and Jason Aldean lead with three nominations apiece. See our 2012 Grammy nominees list here.

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