The nominations for the 40th anniversary of the American Music Awards were announced Tuesday.

Rihanna and rapper Nicki Minaj led the pack with four apiece, edging out stiff competition from pop sensations Justin Bieber and One Direction.

Rihanna, 24, was nominated in the category – artist of the year – where she will compete with Bieber, Katy Perry, pop-rockers Maroon 5 and Canadian rapper Drake.

She also won nods for female soul/R&B artist and album for “Talk That Talk,” and will battle Minaj, 29, in the female pop/rock artist category.

Minaj scored two nods for her album “Pink Friday: Roman Reloaded” in both the pop/rock and rap/hip hop categories this year, as well as a nomination for favorite rap artist, alongside Drake and American newcomer Tyga.

Minaj has been making headlines after joining the “American Idol” judging panel, where she was caught feuding on camera with fellow judge Mariah Carey in early audition rounds.

“Boyfriend” singer Bieber, 18, landed three nominations this year, tying with British boy band One Direction, Maroon 5, Drake and R&B star Usher.

The full list of AMA nominations:

Artist of the Year
» Justin Bieber
» Drake
» Maroon 5
» Katy Perry
» Rihanna

New Artist of the Year
» J. Cole
» Fun.
» Gotye
» Carly Rae Jepsen
» One Direction

Favorite Male Artist: Pop/Rock
» Justin Bieber
» Flo Rida
» Pitbull
» Usher

Favorite Female Artist: Pop/Rock
» Kelly Clarkson
» Nicki Minaj
» Katy Perry
» Rihanna

Favorite Band, Duo or Group: Pop/Rock
» Fun.
» Maroon 5
» One Direction
» The Wanted

Favorite Album: Pop/Rock
» Justin Bieber, Believe
» Maroon 5, Overexposed
» Nicki Minaj, Pink Friday: Roman Reloaded
» One Direction, Up All Night

Favorite Artist: Rap/Hip-Hop
» Drake
» Nicki Minaj
» Tyga

Favorite Album: Rap/Hip-Hop
» J. Cole, Cole World: The Sideline Story
» Drake, Take Care
» Nicki Minaj, Pink Friday: Roman Reloaded

Favorite Male Artist : Soul/R&B
» Chris Brown
» Trey Songz
» Usher

Favorite Female Artist: Soul/R&B
» Beyoncé
» Mary J. Blige
» Rihanna

Favorite Album: Soul/R&B
» Chris Brown, Fortune
» Rihanna, Talk That Talk
» Usher, Looking 4 Myself

Favorite Artist: Alternative Rock
» The Black Keys
» Gotye
» Linkin Park

Favorite Artist: Adult Contemporary
» Adele
» Kelly Clarkson
» Train

Favorite Artist: Latin
» Don Omar
» Pitbull
» Shakira

Favorite Artist: Electronic Dance Music
» David Guetta
» Calvin Harris
» Skrillex

Favorite Male Artist: Country
» Jason Aldean
» Luke Bryan
» Eric Church

Favorite Female Artist: Country
» Miranda Lambert
» Taylor Swift
» Carrie Underwood

Favorite Band, Duo or Group: Country
» Zac Brown Band
» Lady Antebellum
» Rascal Flatts

Favorite Album: Country
» Luke Bryan, Tailgates & Tanlines
» Lionel Richie, Tuskegee
» Carrie Underwood, Blown Away