"All of the music I’ve ever made ... now belongs … to me," the superstar wrote in her message to fans.
The new full-length arrives in two weeks from Big Noise.
The pop star also gave an update on her re-recorded debut album.
Swift, in a surprise move, has reclaimed her master recordings years after they were initially sold, first to Scooter Braun's Ithaca Holdings, then to Shamrock Capital.
Check out the must-hear releases of the week.
The pop star started writing the track one day after the event.
Check out the full roster of support acts for the July 5 & 6 shows.
The U.S. musician will backflip his away across Europe later this year.
"This album has some of my biggest hits to date, as well as some personal favorites that are very special to me,” Carey said of the new package.
The pop star's new LP features singles "End of the World" & "More to Lose."
