CAguileraRichie110608_01_X1.jpgCAguileraRichie110608_07_X1.jpgChristina Aguilera CAguileraRichie110608_04_X1.jpg

Along with Mischa Barton, Christina Aguilera, Nicole Richie and Sophia Bush all attended W's Dsquared party at the Chateau Marmont last night, where they all left with a free gift bag, but seemed to leave their good moods behind.

If I got a gift bag filled with Dsquared stuff, you know I'd be grinning from ear-to-ear, but I guess it's just another day in the life of a celebrity for these folks!