"Lollipop" is a pop song written by Julius Dixson[1] and Beverly Ross in 1958. It was first recorded by the duo Ronald & Ruby—Ross herself was "Ruby"—and then covered more successfully by The Chordettes.
The song is a firm favorite amongst many performing barbershop music.
Links:
https://www.youtube.com/watch?v=Yw0qIyZMtH8