Flashback: Watch Carrie Underwood and Randy Travis Duet on 'Idol' — rollingstone.com

When Randy Travis released "I Told You So" from his 1987 album Always & Forever, it quickly became a landmark song for his career. Though the single had humble beginnings — first sung in clubs and recorded under Travis's stage name "Randy Ray" — it went on to reach platinum status and top Billboard's country singles charts. Almost 20 years later, producers of Fox's American Idol brought Travis in as a mentor in celebration of the show's Grand Ole Opry week. Idol's own Carrie Underwood had just given new life to "I Told You So" by recording the track for her second album Carnival Ride. It was only natural for the next step to be a duet, and the pair debuted their collaboration on the Idol stage. (Watch a video of the performance above.)

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