Singer Teyana Taylor and comedian Michael Blackson have joined the cast of Paramount's sequel to Coming to America, which will also see Emmy winner Louie Anderson reprise his role as Maurice, Collider has exclusively learned. Eddie Murphy will return as Prince Akeem, who is set to become King of Zamunda when he discovers a son he never knew about in America -- a street-savvy Queens native named Lavelle. Honoring his father's dying wish to groom this long-lost son as the crowned prince, Akeem sets off for America with his right-hand man Semmi. Arsenio Hall is set …