What? A simply chic look for Tatler's Only Women party last night. Anderson opted for a satin, strapless prom dress in a pillar-box shade, paired with a black clutch, a swept-back hairdo and minimal makeup. While we love this statement style on the star, does the ankle-skimming length look a little odd with her sparkly shoes?
Where? London, 5 July
Verdict? Let us know how you rate Gillian's party style in the poll below and see more celebrity updos in our hair look book: