Adele and Taylor Swift win big at the American Music Awards

Country sensation Taylor Swift came up the big winner at the American Music Awards, claiming three trophies including the top honor, artist of the year.

She tied for most wins with London-born singer Adele, who also earned three trophies for female pop artist, best album with smash hit 21 and top adult contemporary performer.

But Adele, who came into the awards show as the most-nominated singer with four nods, lost artist of the year to Swift, who seemed genuinely surprised by the upset victory.

"This is one of the craziest things that has ever happened to me," Swift said. "I have no idea what I'm supposed to say. I did not think this was going to happen.'"

Along with year's top artist, Swift claimed AMA trophies for favorite female country artist for the second straight year, and she nabbed best country album with her Speak Now.