This weekend in Atlanta, country-pop darling Taylor Swift became T-Sweezy, sharing the stage with two of the biggest names in hip-hop and R&B.

On Saturday (Oct. 1), she dueted with Usher on his 2004 hit 'Yeah!' and the following night, she stunned her A-Town fans by welcoming rapper T.I., who just days earlier had been released from a halfway house following an 11-month prison stay.

Swift's team-up with the newly freed MC came midway through Sunday's set, after she'd sung a verse of his single 'Live Your Life.' When the rhymer born Clifford Harris Jr. emerged later in the song, the crowd went bananas, welcoming the return of a local hero.

"Singing 'Live Your Life' with TI tonight was unreal," Swift tweeted later in the evening. "LOUDEST screams from the crowd, 14,000 people, hands in the air- welcome back @Tip!!"

Watch Taylor Swift Perform 'Live Your Life' with T.I.