Photos of Selena Gomez and Justin Bieber: American Music Awards 2011

Selena Gomez and Justin Bieber arrive at the red carpet at the American Music Awards 2011, held at the Nokia Theatre LA LIVE on Sunday night (November 20) in Los Angeles.

The gorgeous singer and actress, 19 years old, wore a satin gown by Giorgio Armani.Beautiful!

"Very excited about being .... Christina @ TheRealGrimmie tomorrow the AMA red carpet tomorrow! Congratulations on winning the AMA to female new media !!!!", Selena tweeted her friend Christina Grimmia.