It's RiRi's Navy vs. Nicki's Barbz at the 2012 American Music Awards. Rihanna and Nicki Minaj lead the way with four nominations each for the fan-voted award show, while One Direction and Justin Bieber follow right behind with three apiece.

Rihanna and Bieber are among the five nominees for Artist of the Year, along with Drake, Maroon 5 and Katy Perry. For Favorite Pop/Rock Album, Minaj's 'Pink Friday: Roman Reloaded' competes against Bieber's 'Believe,' One Direction's 'Up All Night,' and Maroon 5's 'Overexposed.' This year also features a new Favorite EDM Artist category that pits Skrillex against David Guetta and Calvin Harris.

The American Music Awards are entirely fan-voted, so which army of diehard supporters can provide the most online clicks will determine which artist goes home as the big winner. Last year, Taylor Swift scored the biggest haul with three victories, including Artist of the Year.

The 2012 AMAs air live from Los Angeles on ABC Nov. 18. Get yourself over to the official show website to cast your votes now.

2012 American Music Awards 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 (EDM)
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'

Favorite Artist - Contemporary Inspirational
Jeremy Camp
Newsboys
tobyMac

Watch the Nicki Minaj 'Pound the Alarm' Video

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