Coldplay and Duffy have bagged four nominations apiece for this year's Brit Awards.
Both acts were shortlisted for the British Single and British Album prizes, with Coldplay also receiving nominations for British Group and British Live Act.
Duffy, meanwhile, picked up further nominations in the British Female and British Breakthrough Act categories.
Adele, Scouting For Girls and Elbow have each been nominated for three awards, while Ting Tings and Estelle have been shortlisted for two.
Girls Aloud also received a pair of nominations - for British Group and British Single - with Leona Lewis, Alexandra Burke and the X Factor finalists among the competition in the British Single category.
In the international categories, five acts picked up a pair of nominations: Kings of Leon, The Killers, AC/DC, MGMT and Fleet Foxes.
Jay-Z and Kanye West will square off for the International Male gong, while Pink, Beyoncé and Katy Perry will compete for the International Female trophy.
Pet Shop Boys will take home the Outstanding Contribution to Music prize at this year's Brit Awards, to be held at London's Earls Court on February 18.
Here is the full list of nominees for this year's Brit Awards, to be held at London's Earls Court on February 18.
British Male Solo Artist
Ian Brown
James Morrison
Paul Weller
The Streets
Will Young
British Female Solo Artist
Adele
Beth Rowley
Duffy
Estelle
M.I.A.
British Group
Coldplay
Elbow
Girls Aloud
Radiohead
Take That
British Single
Adele - 'Chasing Pavements'
Alexandra Burke - 'Hallelujah'
Coldplay - 'Viva La Vida'
Dizzee Rascal ft. Calvin Harris - 'Dance Wiv Me'
Duffy - 'Mercy'
Estelle ft. Kanye West - 'American Boy'
Girls Aloud - 'The Promise'
Leona Lewis - 'Better In Time'
Scouting For Girls - 'Heartbeat'
The X Factor Finalists - 'Hero'
British Album
Coldplay - Viva La Vida
Duffy - Rockferry
Elbow - The Seldom Seen Kid
Radiohead - In Rainbows
Ting Tings - We Started Nothing
British Breakthrough Act
Adele
Duffy
The Last Shadow Puppets
Scouting For Girls
Ting Tings
British Live Act
Coldplay
Elbow
Iron Maiden
Scouting For Girls
The Verve
International Male Solo Artist
Beck
Neil Diamond
Jay-Z
Kanye West
Seasick Steve
International Female Solo Artist
Beyoncé
Gabriella Cilmi
Katy Perry
Pink
Santogold
International Group
AC/DC
Fleet Foxes
The Killers
Kings of Leon
MGMT
International Album
AC/DC - Black Ice
Fleet Foxes - Fleet Foxes
The Killers - Day & Age
Kings of Leon - Only By The Night
MGMT - Oracular Spectacular
British Producer of the Year
Bernard Butler
Brian Eno
Steve Mac
Critics' Choice Award
Florence and the Machine
Outstanding Contribution to Music
Pet Shop Boys