She may already be America's sweetheart, but Taylor Swift has found herself an unlikely fan in the heart of Atlanta. The country singer invited R&B golden boy Usher to join her on stage during her show in his hometown, and managed to wow him with her hip hop skills.

"For real, you guys don't even understand. Taylor, yo, she's crunk for real," Usher explained to Yahoo! Music. "In Atlanta, she came out. She did her thing. I didn't know she and hip hop swag like that. She came out and they enjoyed it."

The cameo was last minute for Ush, who was playing with his kids in the park when the country star called him. "Taylor hits me, and says, 'Yo Ush, I'm in town. I'd really love if you could come out and do 'Yeah' with me.' I'm like, 'Well, we haven't had any rehearsals.' [She said], 'No, no. The band's got it. You just show up.'"

Two hours later, the pair were on stage and Swift was covering Ludacris's verse in the song. Recently sprung rapper T.I. also joined Swift for the show. 

(Photo: Ben Hider/Picturegroup)