Betty Boop in Boop Oop a Doop (1932). voice by Little Ann Little or either Margie Hines who knows they all sound alike, the typical Helen Kane impersonation. Betty's a circus headliner in Boop-oop-a-doop. Betty can be seen on horseback. Betty then star's as a liontamer & a highwire walker. Upon the highwire, Betty sings a jazz number, "Do Something, Boop-oop-a-doop," which had been a hit song for Helen Kane in 1929; Betty, of course, was based on flapper ragtime singer Helen Kane.