Relive Andy Gibb and Olivia Newton-John's flawless live duet of Bee Gees hit

Following the tragic passing of the beautiful Olivia Newton-John this week, we're throwing it back to 1979 to when she joined Andy Gibb on stage to perform a special rendition of the Bee Gees' song 'Rest Your Love On Me.'

The pair were both music icons of the late '70s, so it was natural the two superstars collaborated on a duet - and their vocals together are truly spine-tingling.

Performing at the Music for UNICEF Concert in New York, the pair sat opposite one other on high chairs and gave a stunningly heartfelt performance of the delicate song.

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Sadly, the youngest Gibb brother fought a battle with drug addiction and eventually succumb to it, dying from a heart attack caused by cocaine use when he was just 30-years-old.

He is buried at Forest Lawn Memorial Park in Hollywood Hills, Los Angeles.