Victoria Beckham showed off some major cleavage in a cut-down-to-there jacket last night at the Chateau Marmont.

Although when the slit goes all the way down to your sternum, can you even still call it cleavage?

She joined Gwen Stefani, Gavin Rossdale and Peaches Geldolf (among others) for a star-studded party at the legendary hotel.

Is her tuxedo look hot or not?