27 November 2017, 16:43 | Updated: 24 June 2018, 11:40
We love a good duet. When two pop icons team up for a few minutes of pure gloriousness.
The 1980s in particular were a treasure trove of amazing collaborations, and we've picked just a handful of the very best, just for you...
1. Michael Jackson and Siedah Garrett - 'I Just Can't Stop Loving You'
The first single taken from Michael's Bad album, Siedah's presence on the track was a last-minute decision by Michael and producer Quincy Jones, after their first two choices, Barbra Streisand and Whitney Houston, both declined.
Before then, Siedah was a protégé of Jones's who co-wrote 'Man in the Mirror', and she didn't know that she would be singing the song until the day of the recording session.
2. George Michael and Aretha Franklin - 'I Knew You Were Waiting for Me'
This one-off project allowed George to perform with one of his all-time favourite artists, Aretha. Co-written by Simon Climie of Climie Fisher fame, it was a number one hit in both the UK and US.
It was Aretha's first top 10 in the UK since 'I Say a Little Prayer' two decades earlier.