Both acts have been shortlisted for Best Album, while Arcade Fire are in contention for Best Act In The World Today and Best Video.

Rapper-turned-singer Plan B is also nominated for Best Male and Breakthrough Act.

Florence And The Machine, The xx, Gorillaz, Muse, Kasabian and Gorillaz are all up for two awards each.

Lady Gaga is nominated for Best Live Act and Best Female - a category that also includes Florence & The Machine and Ellie Goulding.

As well as Plan B, the Best Male category includes Brandon Flowers, Dizzee Rascal, Paolo Nutini, Paul Weller.

The Q Awards ceremony will take place at the Grosvenor House Hotel in London on October 25.

Q Awards 2010 nominations:

Breakthrough Artist:

• Ellie Goulding
• Laura Marling
• Lissie
• Plan B
• Villagers

Best New Act:

• Mumford & Sons
• The Drums
• The xx
• Two Door Cinema Club
• Wild Beasts

Best Video:

• Arcade Fire - 'We Used To Wait'
• Biffy Clyro - 'The Captain'
• Chase & Status - 'End Credits' ( ft. Plan B)
• Gorillaz - 'Stylo'
• Vampire Weekend - 'Giving Up The Gun'

Best Live Act:

• Green Day
• Kasabian
• Lady Gaga
• Muse
• Pendulum

Best Album:

• Arcade Fire - 'The Suburbs'
• Gorillaz - 'Plastic Beach'
• Paul Weller - 'Wake Up The Nation'
• Plan B - 'The Defamation Of Strickland Banks'
• The National - 'High Violet'

Best Track:

• Biffy Clyro - 'The Captain'
• Florence And The Machine - 'You’ve Got The Love'
• Mumford & Sons - 'The Cave'
• Owl City - 'Fireflies'
• The xx - 'VCR'

Best Female Artist:

• Corinne Bailey Rae
• Ellie Goulding
• Florence And The Machine
• Lady Gaga
• Laura Marling

Best Male Artist:

• Brandon Flowers
• Dizzee Rascal
• Paolo Nutini
• Paul Weller
• Plan B

Best Act In The World Today:

• Arcade Fire
• Green Day
• Kasabian
• Kings Of Leon
• Muse

(by Jason Gregory)