More casting news: Brittany Murphy and David Zayas have joined the cast of Sylvester Stallone’s upcoming steroid-fueled action film The Expendables.

The film will follow a group of mercenaries who are sent to South America on a mission to overthrow a dictator (played by Zayas). Murphy will play Mickey Rourke’s character’s girlfriend, a singer, and will perform a musical number.

Other cast members include Stallone himself, Jason Statham, Jet Li, Randy Couture, Terry Crews, Eric Roberts and Charisma Carpenter.

Production began this week in Brazil; it will later move to Louisiana.