Paramore was the surprise winner of the international band category, beating the likes of Green Day, Kings of Leon and Vampire Weekend.
NME editor Krissi Murison said 3.6 million votes were cast to decide the outcome of the awards.
Muse won awards for best British band and best Web site, while Kasabian scooped the best album and best album artwork categories for "West Rider Pauper Lunatic Asylum" (Columbia/Sony).
Britpop veterans Blur won best live event for their gig at Hyde Park, and Arctic Monkeys were named best live band after a sell-out tour in 2009.
The Big Pink won best track for "Dominos" and best new band went to London indie rockers Bombay Bicycle Club.
Following are the winners of the main categories:
Best British Band
Best International Band
Best Solo Artist
Best New Band
Bombay Bicycle Club
Best Live Band
Kasabian "West Ryder Pauper Lunatic Asylum" (Columbia/Sony)
The Big Pink "Dominos" (4AD)
Biffy Clyro "The Captain" (14th Floor)
Best Live Event
Blur at Hyde Park
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