Jack Antonoff posted a sweet gallery of photos, including a never-before-seen pic of pal Taylor Swift in the studio, to Instagram on Wednesday (June 19).
Antonoff was a key collaborator on Swift's last two albums, Reputation and 1989, and it stands to reason that he's involved with the star's forthcoming album, Lover.
Other photos, which were all taken on film throughout June, include a big crowd at an unknown concert, Antonoff sitting next to a picture of John F. Kennedy at Electric Lady Studios, sauce being cooked in a kitchen, and Kevin Abstract. "June in film," Antonoff captioned the gallery.
See Antonoff's recap below.