Singer Justin Timberlake surprised fans at a music festival when fellow headliner Jay-Z joined him on stage.
The 32-year-old singer was the headliner for the first night of the Yahoo! Wireless festival in London, and his 'Suit & Tie' collaborator joined him for a live rendition of their hit, reported Sun online.
Timberlake's wife Jessica Biel was joined by the likes of Snoop Lion, Rita Ora, Frank Ocean and magician Dynamo as she watched her husband go through an exciting performance seeing him play guitar and piano during the set.
After his impromptu duet, Timberlake closed his show with a rendition of 'SexyBack'.
