I don’t think I ever heard this until just recently, and that’s an insane shame. It’s from Viva Las Vegas, but the number was cut from the film. Maybe because it was way too saucy.

Elvis Presley & Ann-Margret - You’re The Boss available on The Very Best Of Ann-Margret (amazon / itunes), Viva Las Vegas/Roustabout (amazon), or the balls-out Viva Las Vegas box set (amazon)