A photo from the set of Rock of Ages.

The big screen adaptation of “Rock of Ages” is in full swing, and director Adam Shankman has given fans a sneak peek of two of the stars on the set.

The director Tweeted a photo of an almost unrecognizable Alec Baldwin, who has traded his smooth, preppy coif for shoulder-length blonde locks.

In the photo, which also features a longer-haired Russell Brand, Alec is sporting aviator shades, a patterned jean jacket and a number of bracelets, a true break from the sharp suits the celebrate actor dons as Jack Donaghy on “30 Rock”

Alec is playing Dennis Dupree in the movie, a washed up rock star and bar owner, who can’t quite let go of the dream.

The movie also stars Tom Cruise, former “Dancing with the Stars” mirrorball winner Julianne Hough, Oscar winner Catherine Zeta-Jones and Paul Giamatti.