T.I., Taylor Swift perform surprise duet in Ga.
Toward the end of Swift's set on Sunday night, she introduced T.I. by singing the opening chorus of his hit song "Live Your Life." The packed house at Philips Arena screamed once he stepped onstage for the unannounced appearance and started to rap.
The two Grammy winners stood side-by-side as he rapped and she sang a vocal part originally handled by Rihanna.
Swift has featured guests ranging from Justin Bieber to Nicki Minaj onstage during her tour. The Sunday show was a makeup performance for a July date that was postponed because she was sick.
T.I. has made several appearances onstage since his release from a halfway house last month following 10 months in federal prison on a probation violation.
Fergie, Sarah Jessica Parker, and Heidi Klum all get an F on this week's Fashion Offenders.Watch Video »
Diva Double Date
Beyonce and Alicia Keys double date with their famous hubbies on today's Celebs Gone Social.Watch Video »
Where Are They?
See what the cast of "American Beauty" is up to today.Watch Video »
J.Lo's Mini Me
Jennifer Lopez shares an adorable photo of her look-alike daughter, plus more celebritots on social media on today's Celebs Gone Social.Watch Video »
Prince Harry, Jessica Alba and more stars who threw out the first pitch at baseball games.Watch Video »
Sofia Vergara poses in a revealing neon bikini while her "Modern Family" castmates hit the beach in Australia on Celebs Gone Social.Watch Video »