Olivia Newton-John & John Travolta "Summer Nights [Grease]"

"Summer Nights" is a popular song made famous by John Travolta and Olivia Newton-John. "Summer Nights" was one of the stand out songs from the musical Grease. The follow up to their earlier release "You're The One That I Want," it was a massive hit in the UK spending seven weeks at number one, taking the duo's total at number one that year to 16 weeks for their two hits. The song peaked at #5 on the Billboard Hot 100 in the USA. [Wikipedia]