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?

Barry Gibb is releasing a new album of country covers of Bee Gees songs

Barry Gibb announces new album of country Bee Gees cover duets including Dolly Parton and Olivia Newton-John

It's not everyday you get a line-up of an era's legends all on one stage, but that's exactly what happened one cold January day in 1979. Pictured (L to R) Barry Gibb, Olivia Newton-John, Andy Gibb, Rod Stewart

The day ABBA, Bee Gees, Olivia Newton-John, Rod Stewart and Andy Gibb sang a staggering medley

Relive Andy Gibb, ABBA and Olivia Newton-John's incredible 'jam session' from 1978

Relive Andy Gibb, ABBA and Olivia Newton-John's incredible 'jam session' from 1978

Barry Gibb and Olivia Newton-John in 2009

When Barry Gibb and Olivia Newton-John sang 'Islands in the Stream' and it was glorious

80s music videos

The 20 greatest music videos from the 1980s

Queen and Olivia Newton John will perform at the charity concert in Australia

Queen and Olivia Newton-John confirmed for Live Aid-style concert for Australian bushfire relief

Billy Ocean, Olivia Newton-John, Elton John and Roger Taylor

Elton John, Olivia Newton-John and Billy Ocean among Queen's New Year's Honours list

John Travolta and Olivia Newton-John

When John Travolta and Olivia Newton-John recreated iconic Grease scene 41 years later

Olivia Newton John's best songs

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