Stevie Wonder / Lionel Richie

Watch Stevie Wonder move Lionel Richie to tears with amazing cover of 'Easy'

Michael Jackson and Paul McCartney

9 of Michael Jackson's best duets ever, from Paul McCartney to Stevie Wonder

George Michael/Michael Jackson/Amy Winehouse

8 secret songs and albums we'll never get to hear from huge artists

Stevie and Whitney

Forgotten duets: When Whitney Houston sang with Stevie Wonder

stevie wonder & george michael

Stevie Wonder has TV viewers giggling with cheeky joke: 'George Michael is white?'

On 18 June, we wish Happy Birthday to Sir Fab Macc

6 amazing songs that were never released as singles