The Baby hitmaker had already claimed the night’s first trophy for Favorite Pop/Rock Male Artist and the Favorite Pop/Rock Album prize when his name was called as will.i.am presented the ceremony’s last category.
Dragging his reluctant mom Pattie Mallette up onstage with him, the pop superstar said, “This is my mom, she’s little but she’s beautiful… I wanna thank you for just always believing in me… This is amazing.”
More on the fashion (launch the gallery to see all the red carpet pics), plus the full winners list below.
The metallics were big this year, lead by Taylor Swift who wore a lacy beaded Zuhair Murad dress. Heidi Klum wore another gold lacy dress, although hers was much more racy with a slit up the side of her short dress.
Pink wore a metallic gown with a leather cut-out top and full skirt as she posed up with husband Carey Hart, while Hayden Panettiere went for short and shimmery. She attended the ceremony with boyfriend Scotty McKnight.
Then there was Ke$ha, who looked … normal.
The singer wore a pretty pink baby-doll crocheted mini dress and black sky high heeled shoes.
However, the most notable part of her appearance was her long platinum hair, styled in a Hollywood starlet fashion. Ke$ha kept her new look personalized by working an unusual ear full of golden insect earrings, which she drew attention to by pulling her hair back.
The 2012 American Music Awards Winners:
Favorite Adult Contemporary Artist – Adele
Favorite Contemporary Inspirational Artist – tobyMac
Favorite Latin Music Artist – Shakira
Favorite Pop/Rock Band/Duo or Group – Maroon 5
Favorite Pop/Rock Female Artist – Katy Perry
Favorite Soul/R&B Album – Talk That Talk by Rihanna
Favorite Soul/R&B Female Artist – Beyonce
Favorite Pop/Rock Male Artist – Justin Bieber
Favorite Female Country Artist – Taylor Swift
New Media Award – Psy
Favorite Rap/Hip-Hop Album – Pink Friday: Roman Reloaded by Nicki Minaj
Favorite Alternative Rock Artist – Linkin Park
Favorite Soul/R&B Male Artist – Usher
Favorite Country Male Artist – Luke Bryan
New Artist of the Year – Carly Rae Jepsen
Favorite Country Band/Duo or Group – Lady Antebellum
Favorite Electronic Dance Music Artist – David Guetta
Favorite Pop/Rock Album – Believe by Justin Bieber
Favorite Rap/Hip-Hop Artist – Nicki Minaj
Favorite Country Album – Blown Away by Carrie Underwood
Artist of the Year – Justin Bieber