Alexander & Kate's Chateau Party Night

Posted Monday January 17, 2011 3:13 PM GMT

While they skipped out on the main event, Kate Bosworth and Alexander Skarsgard joined in on the Golden Globe afterparty festivities taking place in Tinseltown on Sunday night (January 16).

The "True Blood" hunk and his "21" actress girlfriend both made separate entrances as they arrived at Chateau Marmont in West Hollywood for a late night soiree.

Also in attendance at the Chateau party was "Mad Men" star January Jones - who arrived clad in her fire engine red, revealing Versace gown.

Rounding out the guest list were big names including "Hostage" hottie Rumer Willis and "Blue Valentine" dreamboat Ryan Gosling.