Jessica Alba didn’t walk the red carpet at the 2010 American Music Awards last night.

She was a presenter so we got to see her absolutely fabulous Cushnie et Ochs Fall 2010 dress in the press room.

Her black one-shouldered dress with a sculptural detail was paired with a gold choker, gold cuffs and black ankle strap Christian Louboutin heels.

It feels like a conservative choice when you consider what everyone else was wearing, but her slick backed bun, asymmetrical neckline and accessories makes the look really interesting.

Credit: Style.com & Bauer Griffin