The nominations have been announced for the 2013 Grammy Awards, and fun., Florence and the Machine, the Black Keys, Jack White, Mumford and Sons and Frank Ocean -- a nominee in six categories -- are among the Diffuser-friendly artists who will compete for gramophone statuettes at the 55th annual ceremony.

Arguably the biggest category at the 2013 Grammy Awards is Album of the Year, and come Feb. 10, when the stars assemble at the Staples Center in Los Angeles, the Black Keys ('El Camino') will face off against fun. ('Some Nights'), Mumford and Sons ('Babel'), Frank Ocean ('Channel Orange') and Jack White, ('Blunderbuss').

In the Best Pop Vocal Album category -- the first announced on tonight's 'Grammy Nominations Concert Live' -- Florence and the Machine's 'Ceremonials' goes up against fun.'s 'Some Nights,' as well as records by Kelly Clarkson, Maroon 5 and Pink. When the 2013 Grammy for Record of the Year is handed out, Ocean ('Thinkin Bout You'), the Black Keys ('Lonely Boy'), fun. ('We Are Young,' featuring Janelle Monae) and Gotye ('Somebody That I Used to Know') will be among those holding their breath in anticipation.

Ocean and fun. are also up for Best New Artist at the 2013 Grammy Awards, and while both the R&B crooner and pop-rock chart conquerors had big years, they'll battle it out with rootsy faves Alabama Shakes and neo-folkies the Lumineers. The Shakes, Keys and Mumford fellas also show up in the Best Rock Performance category, as do Coldplay. Best Rock Song, meanwhile, adds Muse to the melee. The British band's 'Madness' joins White's 'Freedom at 21,' the Keys' 'Lonely Boy' and Mumford and Sons' 'I Will Wait' on the list of nominated tracks. Not surprisingly, Grammy voters have also honored Coldplay, Jack White, the Black Keys and Muse in the Best Rock Album category.

In Best Alternative Rock Album, Fiona Apple's 'The Idler Wheel...' will duke it out with Gotye's 'Making Mirrors,' M83's 'Hurry Up, We're Dreaming,' Bjork's 'Biophilia' and Tom Waits' 'Bad As Me.' And 2013 could see another Grammy win for the Arcade Fire, whose 'Hunger Games' tune 'Abraham's Daughter' is up for Best Song Written for Visual Media.

A full list of nominees for the 55th Annual Grammy Awards is available here. The ceremony airs live on CBS at 8PM EST on Feb. 10.