Mary-Kate looked very superhero in a gold sequin number with a huge slit up the thigh and those gold christian Louboutin (we wouldn't expect anything less when walking the Red Carpet with the master of shoes). Ashley kept it slightly more simple, but the detail cut out of her dress gave it that extra oomph that the event required. Both twins look a million dollar.
I must add Christian looked very super hero with his studded shoes and the 'BANG' badge on his lapel. Its nice to see that even the famous don't mind having fun dressing up.