Taylor Swift had planned to perform a medley of hit songs from throughout her career when she takes the stage later this month to celebrate being named Artist of the Decade at the American Music Awards.

But the pop star may have to rethink her performance because talent manager Scooter Braun, who now owns the rights to her previous albums, won't let her perform them, she says.

The artist wrote on social media Thursday that Braun, who recently bought her first six studio albums, is interfering with the performance, the latest development in a monthslong feud with the manager and Scott Borchetta, chief executive of her former label Big Machine Records.

"Scott Borchetta and Scooter Braun have now said that I’m not allowed to perform my old songs on television because they claim that would be re-recording my music before I’m allowed next year," Swift said.

 

The 29-year-old also claimed that the two men, who own all of her music except the songs from the album "Lover," which was released in August, have refused to allow her older songs to be used in an upcoming Netflix documentary about her career.

"The message being sent to me is very clear," Swift wrote. "Basically, be a good little girl and shut up. Or you’ll be punished."

Braun and Borchetta did not immediately respond to requests for comment from NBC News.

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