Fans who were lucky enough to attend Taylor Swift's Reputation secret sessions in Los Angeles were in good company: frequent collaborator Jack Antonoff, as well as Alana Haim and Ruby Rose, apparently joined them at the exclusive listening party.

The "Gorgeous" singer has been inviting handpicked Swifties to attend super-secret gatherings with her in various cities. There, they get to preview her upcoming album -- which also features "Look What You Made Me Do" and "...Ready for It?" -- before it's released.

"Don’t judge the album yet guys there’s so much to it like if you think you have an idea you really....you don’t," one fan wrote on Twitter after the Oct. 22 event in L.A. "I’m so shook."

(Via billboard.com)