The Klaxons won the Nationwide Mercury Prize for best British or Irish album at a ceremony in London on Monday night.
The East London trio's debut album, ``Myths of the Near Future,'' was released in January in the U.K. Now in its 15th year, the Mercury Prize is worth 20,000 pounds ($40,250) and generally gives a significant sales boost to albums on the prize's shortlist. Geffen released the album in the U.S. in March.
The Klaxons start a 14-city North American tour in Boston on Sept. 23.
Amy Winehouse sang "Love is a Losing Game" at the ceremony, her first performance since finishign a stay in rehab. Among this year's nominees were Winehouse and last year's winners the Arctic Monkeys plus Dizzee Rascal, the View, Bat For Lashes and Jamie T. The ceremony took place at the Grosvenor House Hotel in London.
The band spoke with NME after their win.

Former Mercury Prize winners Arctic Monkeys and Dizzee Rascal have made a return to the Mercury Prize Shortlist, a collection of a dozen albums competing to be named the U.K.'s best.
Along with recent discs from those two acts, Amy Winehouse's "Back to Black" is considered a front-runner for the prize. Rascal was nominated for "Maths + English"; Arctic Monkeys are up for "Favourite Worst Nightmare."
The list is largely bands that have yet to make any sort of mark in the U.S. Nominees are Bat for Lashes' "Fur and Gold" ; Fionn Regan's "The End of History" ; New Young Pony Club's "Fantastic Playroom" ; Klaxons' "Myths of the Near Future" ; the Young Knives' "Voices of Animals and Men"; Maps' "We Can Create"; the View's "Hats Off to the Buskers" ; Jamie T's "Panic Prevention"; and Basquiat Strings' "Basquiat Strings with Seb Rochford."
The winner will be announced Sept. 4.
Now in its 15th year, the Mercury Prize has become a significant prize for U.K. acts, helping boost sales at home and abroad.