Olivia Newton-John
Top 100 singles - Number 6
What: You’re the One That I Want
Who: John Travolta and Olivia Newton-John
When: 1978 (1), 1998 (4)
Which: Appeared in the classic film Grease. This transatlantic No 1 returned to the pinnacle 20 years after debuting, and was also heavily featured in the 1990 Top 5 hit Grease Megamix.