Field Music will also be joint-headlining the event, which takes place at LSO St Luke's in London on September 26.
The show, which is the first in a series of Albums of the Year Live events, will raise money for War Child.
The lineup reflects the acts shortlisted for this year's Barclaycard Mercury Prize, which were announced in full last week.
Fans can apply for tickets through competitions and a ballot system at www.theticketfactory.com. Entry to the gig is free, although a £10 donation is required to secure each pair of tickets.
Performances and interviews with the acts will be shown on Channel 4 as part of their Mercury Prize 2012 coverage. Further shows are expected to be announced over the coming weeks.
The Barclaycard Mercury Prize awards show will take place at London's Roundhouse on Thursday, November 1.
Watch the music video for Jessie Ware's 'Wildest Moments' below: