LOS ANGELES — America proved its Bieber Fever was strong. The teen singer dominated the 40th American Music Awards on Sunday night, winning Favorite Pop/rock Male Artist; Favorite Pop/rock Album for his platinum-selling third album, “Believe”; and the show's top award, Artist of the Year. The night's most colorful performance was by PSY and MC Hammer, who joined the Korean rapper for his viral hit “Gangnam Style.” PSY rocked traditional “Hammer” pants as they danced to his jam and to Hammer's “Too Legit to Quit.” Nicki Minaj repeated her AMAs wins from last year, picking up trophies for Favorite Rap/hip-hop Artist and Album for “Pink Friday: Roman Reloaded.” Usher kicked off the three-hour show and won Favorite Soul/R&B Male Artist. Taylor Swift won her fifth consecutive award for Favorite Country Female Artist. “American Idol” winner Carrie Underwood won Best Favorite Country Album and performed. Lady Antebellum won favorite country group. David Guetta won the show's first-ever Electronic Dance Music award. Non-televised awards went to Katy Perry for Pop/rock Female Artist, Beyonce for Soul/R&B Female Artist, Adele for Adult Contemporary Artist and Shakira for Latin Artist. — AP