Carrie Underwood surprised the audience at the Grand Ole Opry on Tuesday night by joining Brad Paisley for what may be their first live performance of the hit duet 'Remind Me.' The two will also perform the song -- from Paisley's 'This is Country Music' album -- at the CMA Awards in November.

The fan video below shows Underwood in a dark blazer and dark pants, while Paisley is wearing his standard short sleeve shirt and white cowboy hat. Both were dressed much more comfortably than they normally would be for award shows, but their performance was anything but casual. It barely takes a verse before Underwood is putting her whole heart and soul into the powerful performance.

This Saturday, the Grand Ole Opry will hold its Opry Goes Pink show to support Women Rock for the Cure and Breast Cancer Awareness. Martina McBride, Kellie Pickler and Lauren Alaina are scheduled performers for the show. ABC's Robin Roberts ('Good Morning America') will be on hand as a special guest announcer and speaker.

Watch Brad Paisley and Carrie Underwood Perform 'Remind Me'