Other contenders are solo artists Laura Mvula, Bat For Lashes, Anohni, Jamie Woon and Michael Kiwanuka; bands Radiohead, The 1975, Savages and The Comet is Coming; and grime musicians Skepta and Kano.
Established in 1992 and open to acts from Britain and Ireland, the Mercury Prize often favors the eclectic and obscure over better-known performers.
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Some winners, including Arctic Monkeys and Elbow, have gone on to mainstream fame, while others have failed to break through.
This year's winner will be announced Sept. 15.