Chris Rock is the first male actor to join the ensemble adaptation of Heidi Murkoff's best seller What to Expect When You're Expecting, from director Kirk Jones.

The comedian-turned-actor is joined by actresses Cameron Diaz, Jennifer Lopez, Brooklyn Decker, and Anna Kendrick. Chris Rock will play Vic, the leader of a group of expectant husbands who lectures his fellow dad-in-training on what to expect and how to act.

Production is expected to start on What to Expect When You're Expecting before the end of summer. More male actors are expected to be announced soon.