Move aside Madonna and watch out Barry White. The winner of the sexiest song of all time is — Olivia Newton-John with Physical, according to music publication Billboard.

Billboard has come up with a list of the 50 most popular songs about sex in time for Valentine's Day with each song given points according to its performance on the Billboard hot 100 chart from August 1958 until January this year.

Physical, released by Newton-John in 1981, topped the list after spending 10 weeks as No 1 in the Billboard Hot 100 chart. The song became known as well-known as a track for aerobics classes in line with the singer's exercise-themed video. Second in the list came Rod Stewart's 1976 song Tonight's the Night, followed by Boyz II Men's 1994 ballad I'll Make Love To You. — Reuters