Hayden Panettiere in Grey Brioni

Hayden Panettiere attended the Artists for Peace and Justice Event on March 4 before heading out to Chateau Marmont with some friends.

For her night out Hayden wore a grey minidress by Brioni topped with a black blazer

A silver Bally clutch and Louboutin heels accessorised and gold Melinda Maria jewelry completed the look.

Pics from Zimbio