The British funnyman was recently rumoured to be joining Tom Cruise, Alec Baldwin and Mary J. Blige in the movie adaptation of the hit Broadway show.
Brand has now confirmed the story, but insists he will only commit to the role if he is allowed enough time off.
He tells Entertainment Weekly, ""I have to make sure I see me wife (sic) enough, but if we can work out the schedule, then yeah, I want to do it. Tom Cruise, Alec Baldwin, rock music of the '80s - you can't go wrong. And I've already got the hair. I am way ahead of them on that account (sic).""