?Selena Gomez  Justin Bieber  dress tuxedo american music awards red carpet

Couple of the moment Justin Bieber and Selena Gomez stunned on the American Music Awards red carpet tonight. In fact, Justin's slick hairdo was more talked about than Selena's sexy cut-out gown!

The usually-fringed teen heartthrob broke out the gel and the comb, parted his hair on the side and glued it all down. Hey, he looks quite debonair!

Meanwhile, 19-year-old Selena looked amazing in a pewter Giorgio Armani gown. What a hot couple!