John C. Reilly has signed on to the musical biopic parody, Walk Hard for Columbia Pictures.

The film spoofs the recent musician biographies, like Beyond the Sea, Walk the Line, and Ray. Jake Kasdan is directing the comedy from a script he co-wrote with Judd Apatow; Production Weekly says Reilly plays fictional music legend Dewey Cox, who's an amalgamation of Johnny Cash, Roy Orbison and Waylon Jennings and will sing the tunes his own voice.

Shooting on Walk Hard will start mid January in Los Angeles.