Not only did country-singing legend Glen Campbell walk away from last night's Grammys with a Lifetime Achievement Award, but the 75-year-old singer and Country Music Hall of Famer proved that he's still got the goods with the performance of a lifetime, too.

Campbell, who revealed last June that he had been diagnosed with Alzheimer's disease and would be going on his "farewell tour" to promote his final album, Ghost on the Canvas, took the stage for one of the most talked-about performances of Sunday night, singing his old classic, "Rhinestone Cowboy," after The Band Perry and Blake Shelton also sang tribute Campbell tunes "Gentle On My Mind" and "Southern Nights," respectively.

Campell's performance, introduced by Shelton, lit up the room and had all the music lovers in the audience on their feet, clapping and bopping to the music. Paul McCartney especially seemed to be enjoying the tune, raising his arms and visibly singing along. "I've got my own choir here!" Campbell exclaimed in the middle of his song, holding his microphone out to the audience so they could sing the chorus.

The Band Perry and Shelton joined Campbell in the spotlight for the final few bars, before Campbell effusively thanked his fans.

Watch the performances here:

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