Irving Berlin provides the tunes for this engaging musical about the singing and dancing Donahue clan as they ascend to stardom on the vaudeville circuit during the genre's last hurrah. The superb cast includes Ethel Merman, Donald O'Connor, Mitzi Gaynor and Marilyn Monroe. With splashy production numbers, Merman belting out the title song and Monroe's sultry version of "Heat Wave," this musical extravaganza bubbles over with sparkling style.