EXCLUSIVE: Taylor Swift Releases Preview of '1989 World Tour LIVE' Film

— -- Taylor Swift's upcoming concert film, "The 1989 World Tour LIVE," isn't set to premiere until Sunday on Apple Music, but Swifties can get an exclusive preview of the pop superstar's holiday gift right now.

With the help of Apple Music, the concert film takes fans behind the scenes of Taylor's record-breaking world tour, including showing never-before-seen backstage footage.

In the nearly three-minute exclusive preview, the seven-time Grammy winner reveals what it was like to work with the tour's special musical guests, including her bestie Selena Gomez, Lorde, Pitbull, Alanis Morissette, Ricky Martin and Steven Tyler.

"When I have a sound check with a special guest artist, I will meet them on the stage, introduce them to everybody," she says in the preview. "I'd walk the artist along the stage. I'd say, 'I think maybe we should go here at this point in the song ... and we would just decide together what the performance should look like.

"I just wanted us to go all out," Swift adds.

Other musical guests featured in the concert film include Justin Timberlake, the Weeknd, John Legend, Leona Lewis, Keith Urban, Mick Jagger, and Mary J. Blige. And of course, the members of Swift's squad -- Gigi Hadid, Kendall Jenner and Karlie Kloss -- make appearances.

"The 1989 World Tour LIVE" will not only show one-of-a-kind collaborations, but also performances of Swift's biggest hits from her latest album, such as "Shake It Off" and "Blank Space."

Members will be able to watch the film exclusively when it debuts on Sunday on Apple.co/1989WorldTour.