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Justin Bieber

ABC/RICK ROWELL

Justin Bieber wasn't kidding calling his album My World 2.0.

The 16-year-old crooner owned Sunday night's American Music Awards, beating out Lady Gaga, Katy Perry, Eminem and Ke$ha for the coveted Artist of the Year trophy. 

And that was just one of the four wins for the teen heartthrob...

Bieber, who became the youngest artist ever to win the AMA Artist of the Year award, raked in the most awards of the night, also grabbing nods for the T-Mobile Breakthrough Artist of the Year, Favorite Male Pop/Rock Artist and Favorite Album.

Rihanna opened with a medley of hits, singing "Love the Way You Lie (Part 2)", "What's My Name" and "Only Girl (In the World) in fishnets and a barely-there sarong. She took home the trophy for Soul/R&B Female Artist, but before Rihanna's name could be announced, rapper Nicki Minaj took a moment to give a shout-out her upcoming album...though we won't.

Miley Cyrus belted out "Forgiveness and Love" on a candlelit set, a move she'd clued E! News to earlier in the week. 

The Black Eyed Peas later popped out of Day-Glo boxes for a futuristic performance for their new hit "This Time (The Dirty Bit)". The group trumped Lady Antebellum and Train, taking home the Favorite Pop/Rock Band, Duo or Group nod. 

And not one to take after baby bumpin' performers of the past (à la Alicia Keys atop a piano at the BET Awards) a pregnant Pink performed "Raise Your Glass," though she did ditch her aerial acrobatics to keep both feet on the ground.

Take a look at the complete list of winners at the 2010 AMAs:

ARTIST OF THE YEAR

• Justin Bieber

POP/ROCK

• Male Artist: Justin Bieber

• Female Artist: Lady Gaga

• Band, Duo or Group: The Black Eyed Peas

• Album: Justin Bieber, My World 2.0 

SOUL/R&B

• Male Artist: Usher

• Female Artist: Rihanna

• Album: Usher, Raymond Vs. Raymond 

RAP/HIP-HOP

• Male Artist: Eminem

• Album: Eminem, Recovery 

COUNTRY

• Male Artist: Brad Paisley

• Female Artist: Taylor Swift

• Band, Duo or Group: Lady Antebellum

• Album:  Carrie Underwood, Play On

ADULT CONTEMPORARY

• Artist: Michael Bublé

ALTERNATIVE ROCK

• Artist: Muse

Latin

• Artist: Shakira

CONTEMPORARY INSPIRATIONAL

• Artist: MercyMe

SOUNDTRACK

• Album: Glee: The Music, Volume 3--Showstoppers

T-MOBILE BREAKTHROUGH ARTIST

• Justin Bieber