Jessie J sang a duet of 'Price Tag' with a lucky fan at her a MasterCard 'Priceless Gig' last Friday (14.
03.16) in London, England.

The 'Price Tag' hitmaker was joined by a lucky fan who was chosen at random to sing the song with her at the event.

Jessie J and her lucky fan performed the song together at the event, which was held at the London Palladium