Brit Awards nominees in pictures

Tonight sees the biggest names in pop go head-to-head in one of the most anticipated nights of the British musical calendar.

Nominees for the Brit Awards 2012 were announced on 12 January, but in case you've forgotten who is up for what, we've put together a guide to some of the contenders.

(For a full list, see below)

To launch the guide click here or 'View Gallery' above

Full list of Brit Award nominees:

Here are the nominations for the Brit Awards 2012 with MasterCard.

British male solo artist:

Ed Sheeran

James Blake

James Morrison

Noel Gallagher's High Flying Birds

Professor Green

British female solo artist:

Adele

Florence + The Machine

Jessie J

Kate Bush

Laura Marling

British breakthrough act:

Anna Calvi

Ed Sheeran

Emeli Sande

Jessie J

The Vaccines

British group:

Arctic Monkeys

Chase & Status

Coldplay

Elbow

Kasabian

British single:

Adele - Someone Like You

Ed Sheeran - The A Team

Example - Changed The Way You Kissed Me

Jessie J ft BOB - Price Tag

JLS ft Dev - She Makes Me Wanna

Military Wives/Gareth Malone - Wherever You Are

Olly Murs ft Rizzle Kicks - Heart Skips A Beat

One Direction - What Makes You Beautiful

Pixie Lott - All About Tonight

The Wanted - Glad You Came

MasterCard British album of the year:

Adele - 21

Coldplay - Mylo Xyloto

Ed Sheeran - +

Florence + The Machine - Ceremonials

PJ Harvey - Let England Shake

International male solo artist:

Aloe Blacc

Bon Iver

Bruno Mars

David Guetta

Ryan Adams

International female solo artist:

Beyoncé

Bjork

Feist

Lady Gaga

Rihanna

International group:

Fleet Foxes

Foo Fighters

Jay Z/Kanye West

Lady Antebellum

Maroon 5

International breakthrough act:

Aloe Blacc

Bon Iver

Foster The People

Lana Del Rey

Nicki Minaj

Outstanding contribution to music award:

Blur

Critics' choice:

Emeli Sande

British producer:

Paul Epworth

Flood

Ethan Johns