In film Flying Down To Rio with Fred Astaire and Ginger Rogers (for the first time together) and Dolores Del Rio. Also instrumental and another sung version by Movita Castaneda & Alice Gentle. Nominated for the first Oscar ever for a film song (won by The Continental, also with Ginger & Fred - see there).
Enric Madriguera [n°1 US]
Tielman Brothers [as Twistin' The Carioca]
Vincent Youmans also wrote Sometimes I'm Happy, Time On My Hands, More Than You Know and Tea For Two (see all there).