Jessie Ware and Lianne La Havas and Filed Music are set to play a special one-off show as part of the Barclaycard Mercury Prize Albums of the Year Live gig.
The three acts will 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 and fans can apply for tickets through competitions and a ballot system at www.theticketfactory.com.
The 12 strong shortlist features an array of names with probably the most well-known being Plan B who is nominated for his multi-planitum selling iII Manors.
Chair of the judges Simon Frith summed up the eclectic mix by saying: “This year’s Barclaycard Mercury Prize shortlist showcases a wonderful variety of musical voices, emotions and ambitions."
"The sheer range of music here celebrates the abiding ability of British musicians to find new ways to explore traditional themes of love and loss while making an exhilarating soundtrack for life in 2012.”
Bookies favourite to make the shortlist Alt-J see their album An Awesome Wave included whilst Jessie Ware is one of only two females artists nominated alongside Lianne La Havas.
Other big female names like Florence and The Machine and Emeli Sande, who were said to be favourites to make the nominees, fail to make the shortlist.
Richard Hawley makes his second appearance on the shortlist with Standing At The Sky’s Edge He was nominated in 2005 for Cole’s Corner but lost to Antony and the Johnsons.
Meanwhile five bands make the list including The Maccabees who are nominated for Given To The Wild.
Check out the full list below. The winner will be announced at a ceremony on November 1, who are you backing for the win? 2012 Albums of the Year:
Alt-J - An Awesome Wave
Ben Howard - Every Kingdom
Django Django - Django Django
Field Music - Plumb
Jessie Ware - Devotion
Lianne La Havas - Is Your Love Big Enough?
Michael Kiwanuka - Home Again
Plan B - Ill Manors
Richard Hawley - Standing at the Sky’s Edge
Roller Trio - Roller Trio
Sam Lee - Ground Of Its Own
The Maccabees Given To The Wild
Lianne La Havas - 'Lost & Found':
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