Nicole Richie

Pete Wentz had an art show at Gallery 1988 last night and not only did his wife and baby mama Ashlee Simpson show up, so did Nicole Richie and her boy Joel Madden (with bro Benji in tow)!

Nicole looks totes cute, right? Sporting a little red and green - how Christmas-y! But she doesn't really look... happy... in the video. Did she just have a long night or is something else going on?