The full list of nominees for the 2010 American Music Awards were announced Tuesday (October 12) in Los Angeles, and, much like he's done for most of the year, Eminem stands head and shoulders above the rest.

Em is up for five awards at the 2010 AMAs, tied with country juggernauts Lady Antebellum for the most of any artist. Justin Bieber scored four nods, while B.o.B, Katy Perry, Ke$ha and Usher are each up for three. Lady Gaga, the Black Eyed Peas, Rihanna and Drake are also nominated in various categories.

Eminem is nominated in both the Favorite Male Artist - Pop or Rock (up against Bieber and Usher) and Hip-Hop categories and Artist of the Year (where he'll face off against Gaga, Perry, Bieber and Ke$ha). His massively successful Recovery disc is also up for Favorite Album - Rap or Hip-Hop. Bieber's four nods are for Favorite Male - Pop or Rock, Artist of the Year and Breakthrough Artist of the Year. My World 2.0 is also in the running for Album of the Year - Pop or Rock.

AMA nominees are selected from BigChampagne's Ultimate Chart, which ranks the most popular artists and songs based on a weighted combination of music sales, radio and TV broadcast, Internet streaming and video viewing and "additional online metrics," including social-media activity.

Winners will be determined by online voting, at AMAVote.com; voting is now under way in all categories.

The 38th annual AMAs will be broadcast live from the Nokia Theatre in L.A. on Sunday, November 21, at 8 p.m. ET on ABC.

The full list of American Music Award nominees:

Pop or Rock Music

Favorite Male Artist

» Justin Bieber

» Eminem

» Usher

Favorite Female Artist

» Ke$ha

» Lady Gaga

» Katy Perry

Favorite Band, Duo or Group

» The Black Eyed Peas

» Lady Antebellum

» Train

Favorite Album

» Justin Bieber, My World 2.0

» Eminem, Recovery

» Katy Perry, Teenage Dream

Country Music

Favorite Male Artist

» Jason Aldean

» Luke Bryan

» Brad Paisley

Favorite Female Artist

» Miranda Lambert

» Taylor Swift

» Carrie Underwood

Favorite Band, Duo or Group

» Zac Brown Band

» Lady Antebellum

» Rascal Flatts

Favorite Album

» Jason Aldean, Wide Open

» Lady Antebellum, Need You Now

» Carrie Underwood, Play On

Rap/Hip-Hop Music

Favorite Male Artist

» B.o.B

» Drake

» Eminem

Favorite Album

» B.o.B, B.o.B Presents: The Adventures of Bobby Ray

» Drake, Thank Me Later

» Eminem, Recovery

Soul/ Rhythm & Blues Music

Favorite Male Artist

» Chris Brown

» Trey Songz

» Usher

Favorite Female Artist

» Alicia Keys

» Rihanna

» Sade

Favorite Album

» Alicia Keys, The Element of Freedom

» Sade, Soldier of Love

» Usher, Raymond v. Raymond

Soundtracks

Favorite Album

» AC/DC, "Iron Man 2"

» Glee: The Music, Volume 3 Showstoppers

» "The Twilight Saga: Eclipse"

Alternative Rock Music

Favorite Artist

» Muse

» Phoenix

» Vampire Weekend

Adult Contemporary Music

Favorite Artist

» Michael Bublé

» Lady Antebellum

» Train

Latin Music

Favorite Artist

» Daddy Yankee

» Enrique Iglesias

» Shakira

Contemporary Inspirational

Favorite Artist

» Casting Crowns

» MercyMe

» TobyMac

Artist of the Year

» Justin Bieber

» Eminem

» Ke$ha

» Lady Gaga

» Katy Perry

T-Mobile Breakthrough Artist

» B.o.B

» Justin Bieber

» Taio Cruz

» Jason Derülo

» Ke$ha

» Lady Antebellum

» Travie McCoy

» Mike Posner

Share your thoughts on the nominations in the comments below!