The Uk's 50 Bestselling Duets Of All Time

Tony Blackburn returns with another bank holiday chart rundown specially compiled by The Official Chart Company for BBC Radio 2, and this time it's The UK's 50 Bestselling Duets of All Time.

Without giving too much away, the chart includes two versions of the same song - twice; three appearances by the same duo; music mainly from the 70s, 80s and 90s; plus lots of music with a link to stage or screen.

To be eligible for the chart, a duet has to be a collaboration between two singers, who are equally billed, and don't normally record as a duo.

Tony Blackburns counts down the most successful duets ever to hit the UK charts.