Los Angeles, Aug. 14 -- Sabrina Carpenter is "freaking out," but for a good reason. The singer has been announced as the only featured artist on Taylor Swift's upcoming 12th studio album, 'The Life of a Showgirl.'

The big news was revealed this week when Swift announced the album, set to release on October 3. The 12-track project is produced by Swift, along with Max Martin and Shellback, with a surprising absence of her longtime collaborator Jack Antonoff.

Carpenter, who couldn't contain her excitement and took to her Instagram Stories to post, "I know someone is freaking out, and it's me."

On Tuesday (local time), in classic Swift form, the singer revealed her 12th album title on her boyfriend Travis Kelce's podcast, New Heights Show....