The energy between Olivia Newton-John and Andy Gibb is palpable and lead to them recording a single for Andy's new album just a few months later.

When Andy Gibb and Olivia Newton-John sang a sizzling duet of Bee Gees hit ‘Rest Your Love On Me’

Michael Ball, Celine Dion and Olivia Newton-John all did Eurovision in the past

14 singers you totally forgot did Eurovision (or failed to get there)

Vidoe has resurfaced of Olivia Newton-John and John Travolta laughing hysterically during a Grease interview in 1983 (pictured)

Olivia Newton-John and John Travolta get the giggles as adorable Grease interview descends into chaos

The greatest movie songs ever

The 100 greatest movie songs of all time, ranked

Movie love songs

The 20 greatest movie love songs of all time, ranked in order of pure romance

Can you guess which is the best-selling movie soundtrack of all time?

What are the top 5 best-selling movie soundtracks of all time?

Olivia Newton-John in 2013

Olivia Newton-John says she is feeling "very good" in ongoing cancer recovery

One eagle-eyed fan has spotted a very – shall we say 'ballsy' – wardrobe malfunction in one scene from Grease 2 that has seemingly slipped anyone's notice for almost 40 years (pictured right).

Shocking X-rated wardrobe malfunction in Grease 2 movie spotted 39 years after its release

Clockwise from Left to Right: George Michael and Andrew Ridgeley, Michael Jackson and Lionel Richie and Stevie Wonder and Whitney Houston

These 17 candid photos of '80s pop stars having fun together will take you right back in time

Olivia Newton-John has opened up about living with cancer in a recent interview

Olivia Newton-John shares positive update on third cancer treatment: 'I feel wonderful'

Olivia Newton-John reveals she won't be getting coronavirus vaccine

Olivia Newton-John reveals she won't be getting the coronavirus vaccine

As the Bee Gees begin to play the classic track 'Grease', the lighting crew shone a spotlight on Olivia Newton-John in the audience.

When Barry Gibb led the Bee Gees in singing ‘Grease’ to a moved Olivia Newton-John in the crowd

Olivia Newton-John and her daughter Chloe's new song

Olivia Newton-John releases gorgeous new duet with daughter Chloe Lattanzi

Olivia Newton-John has dismissed sexist claims about Grease

Olivia Newton-John dismisses claims Grease is sexist: 'It's just a girl in love with a guy'

Grease

Where are the cast of Grease now over 40 years later?

Olivia Newton John's best songs

Olivia Newton-John's 10 best songs ever, ranked