Alec Baldwin has joined Rock of Ages, announced director Adam Shankman through his Twitter page.

Alec Baldwin will play Dennis, joining Tom Cruise, who plays Stacee Jaxx, Julianne Hough, who plays Sherrie, and Mary J. Blige, who plays Justice. Russell Brand is also rumored for the role of Lonnie.

Adam Shankman also announced that he has been polishing the Rock of Ages script with Justin Theroux. The original draft was written by Chris D'Arienzo.

Production is slated to begin on May 19 in Florida.