Lianne La Havas, Jessie Ware, Field Music

Three of this year's Barclaycard Mercury Prize shortlisted artists will play a special gig at LSO St Luke's in London on Wednesday 26th September, as part of a new series of 'Albums of the Year Live' events.

Lianne La Havas, Jessie Ware and Field Music will jointly headline the gig, which will raise money for War Child, helping support their fantastic work assisting children affected by conflict all over the world.

The lineup for the gig reflects the range of music to be found on the 2012 Albums of the Year shortlist, as the playful harmonies and quirky rhythms of Field Music, the sensuous and emotive pop of Jessie Ware and the heartfelt songs of singer-songwriter Lianne La Havas are all brought together on a single bill.

The Prize will be making tickets for the event available to fans through competitions and a special ballot system developed in association with Barclaycard Unwind and their partner The Ticket Factory. Entry to the gig will be free, although a donation of £10 will need to be made to War Child in order to secure each pair of tickets. Barclaycard will be matching all donations made using a Barclaycard.

Fans can apply for tickets at: www.theticketfactory.com - the ballot will close at 10am on Wednesday 19th September.

Fans who are not able to attend the gig will still be able to catch tracks and interviews on television as part of Channel 4's coverage of this year's Prize. Each artist will be the subject of a dedicated programme broadcast in October ahead of the Barclaycard Mercury Prize Awards Show, which will take place on Thursday 1st November.