Adele leads the nominations for the 2011 American Music Awards with four nods.

The 'Someone Like You' hitmaker - who recently was forced to cancel her American tour due to illness - will compete in the categories Artist of the Year, Favourite Female Artist, Favourite Adult Contemporary Artist and Favourite Album for '21'.

Lady Gaga, Taylor Swift, Lil Wayne, Katy Perry and Rihanna received three nominations and Lil Wayne, Taylor, Katy and Gaga will all compete with Adele in the Artist of the Year category.

Beyonce, Bruno Mars, Chris Brown, Jason Aldean, Kanye West and LMFAO have all been nominated in two categories as have Nicki Minaj and Pitbull, who announced the nominees today (11.10.11).

The 39th annual American Music Awards will be held November 20 at the Nokia Theatre in Los Angeles.

Full list of American Music Awards nominations:

Pop or Rock Music: Favourite Female Artist

Adele

Katy Perry

Lady Gaga

Pop or Rock Music: Favourite Male Artist

Justin Bieber

Bruno Mars

Pitbull

Pop or Rock Music: Favourite Band, Duo or Group

LMFAO

Maroon 5

OneRepublic

Pop or Rock Album

Adele - '21'

Rihanna - 'Loud'

Lady Gaga - 'Born This Way'

Rap/Hip-Hop Music: Favourite Artist

Lil Wayne

Nicki Minaj

Kanye West

Rap/Hip-Hop Album

Lil Wayne - 'Tha Carter IV'

The Throne - 'Watch the Throne'

Nicki Minaj - 'Pink Friday'

Soul/R&B Music: Favourite Male Artist

Chris Brown

Trey Songz

Usher

Soul/R&B Music: Favourite Female Artist

Rihanna

Beyoncé

Kelly Rowland

Soul/R&B Album

Chris Brown - 'F.A.M.E.'

Rihanna - 'Loud '

Beyoncé - '4'

Alternative Rock Music: Favourite Artist

Foo Fighters

Black Keys

Mumford & Sons

Adult Contemporary Music: Favourite Artist

Adele

Bruno Mars

Katy Perry

Latin Music: Favourite Artist

Pitbull

Enrique Iglesias

Jennifer Lopez

Country Music: Favourite Female Artist

Sara Evans

Miranda Lambert

Taylor Swift

Country Music: Favourite Male Artist

Jason Aldean

Brad Paisley

Blake Shelton

Country Music: Favourite Band, Duo or Group

Zac Brown Band

Lady Antebellum

The Band Perry

Country Music: Favourite Album

Jason Aldean - 'My Kinda Party'

Taylor Swift - 'Speak Now'

The Band Perry - 'The Band Perry'

Artist of the Year

Adele

Lady Gaga

Katy Perry

Lil Wayne

Taylor Swift