Usher and Eminem follow closely behind with 2 AMA gongs each
The singer scooped 4 gongs, including the main prize for Artist Of The Year.
Justin, 16, also took home awards for Pop/Rock Male Artist, Breakthrough Artist and Pop/Rock Album for My World 2.0.
‘I can’t stop smiling,’ he told the audience.
The rapper was Rap/Hip-Hop Male Artist and his LP Recovery was Rap/Hip-Hop Album.
Usher was Soul/R&B Male Artist while his record Raymond V Raymond was Soul/R&B Album.
SEE PICTURES Justin Bieber gets mobbed at airport>>
SEE PICTURES Justin Bieber bungee jumps off bridge>>
Full winners for American Music Awards 2010:
– Soul/R&B Album: Usher, Raymond V Raymond.
– Soul/R&B Female Artist: Rihanna.
– Soul/R&B Male Artist: Usher.
– Pop/Rock Album: Justin Bieber, My World 2.0.
– Pop/Rock Band, Duo or Group: The Black Eyed Peas.
– Pop/Rock Female Artist: Lady Gaga.
– Pop/Rock Male Artist: Justin Bieber.
– Rap/Hip-Hop Album: Eminem, Recovery.
– Rap/Hip-Hop Male Artist: Eminem.
– Country Band, Duo or Group: Lady Antebellum.
– Country Album: Carrie Underwood, Play On.
– Country Female Artist: Taylor Swift.
– Country Male Artist: Brad Paisley.
– Contemporary Inspirational Artist: MercyMe.
– Soundtrack: Glee: The Music, Volume 3 – Showstoppers.
– Latin Music Artist: Shakira.
– Alternative Rock Artist: Muse.
– Adult Contemporary Artist: Michael Buble.
– Breakthrough Artist: Justin Bieber.
– Artist of the Year: Justin Bieber.