Snow Patrol's 'Chasing Cars' has been named the Most Played track of the 21st century.
It was released in 2006 and also has the honour of being the last song performed live on Top of the Pops.
It didn't top the charts when it was released but has been used in TV shows - including Grey's Anatomy - and a number of movies.
Data from the UK music licensing company PPL placed 'I Gotta Feeling' by Black Eyed Peas second, and 'Happy' by Pharrell in third place.
https://www.youtube.com/watch?v=96tJkeEL7lc