20. Katy B – Lights On (ft Ms Dynamite) (2010) 19. Bobbie Gentry and Glen Campbell – Mornin’ Glory (1968) 18. Tom Waits and Crystal Gayle – Picking Up After You (1982) 17. Otis Redding and Carla Thomas – Tramp (1967) 16. Prince (with Sheena Easton) – U Got the Look (1987) 15. Roberta Flack – Back Together Again (ft Donny Hathaway) (1980) 14. George Michael and Elton John – Don’t Let the Sun Go Down on Me (1991) 13. Dan Hartman (with Loleatta Holloway) – Vertigo/Relight My Fire (1979) 12. Nancy Sinatra and Lee Hazlewood – Some Velvet Morning (1967) 11. William Bell and Judy Clay – Private Number (1968)
10. The Pogues – Fairytale of New York (ft Kirsty MacColl) (1988)
9. Charli xcx and Lorde – The Girl, So Confusing Version With Lorde (2024)
8. Brandy and Monica – The Boy Is Mine (1998)
7. Nick Cave and the Bad Seeds + Kylie Minogue – Where the Wild Roses Grow (1995)
6. Bob Dylan and Johnny Cash – Girl From the North Country (1969)
5. Kenny Rogers and Dolly Parton – Islands in the Stream (1983)
4. Queen and David Bowie – Under Pressure (1981)
3. Marvin Gaye and Tammi Terrell – You’re All I Need to Get By (1968)
2. Pet Shop Boys with Dusty Springfield – What Have I Done to Deserve This? (1987)
1. Peter Gabriel and Kate Bush – Don’t Give Up (1986)
