Director Adam Shankman tweeted the news Wednesday, saying, "I can officially announce Russell Brand as your Lonny in #rockofagesmovie! I see a mullet in his future...maybe a Nikki Six?" (FYI, that's Nikki Sixx, Shankman. Better bone up on your rock trivia!)
The movie, based on the hit Broadway musical, will also star newcomer Diego Gonzalez Boneta as well as Tom Cruise, Alec Baldwin, Mary J. Blige, Paul Giamatti and Julianne Hough.
In other casting news, Rufus Sewell (last seen in 'The Tourist'), will play Adam, the head vampire, in 'Abraham Lincoln: Vampire Hunter.' He joins a cast that includes Benjamin Walker (in the title role), Mary Elizabeth Winstead, Anthony Mackie and Dominic Cooper.