Sienna Miller and Jude Law confirmed that they are officially back together on the red carpet tonight at the 2010 Costume Institute Gala.

He wore a standard black suit, whilst Sienna glowed wearing a sexy Emilio Pucci Fall 2010 gown.

The plunging midnight blue gown had a tiered embroidered skirt and a rise and fall hem.

It’s the perfect sexy look for Sienna.

Lorraine Schwartz Diamonds and strappy sandals completed her look.

I love that these two are back together. They were obviously meant to be.

Credit: Style.com & Getty