Actor Akshay Kumar admits he had to work really hard while filming dance scenesfor his upcoming action film Rowdy Rathore because choreographer Prabhu Deva's steps are not easy.While talking about his film on the sets of TV show Dance India Dance, Akshay said: "Whatever he tellsme, I go and rehearse it. We start rehearsing one week before. His steps are not so easy that you cando it immediately on the sets. Whatever steps he tells me I practice it and then do it finally. RowdyRathore, which also features Sonakshi Sinha, is scheduled to hit theatres June 15.