Who? Cheryl Cole and Nicola Roberts.
What? We think Nicola Roberts must be having car trouble, because she seems to have employed Cheryl Cole to come and fix it. The singer's navy jumpsuit had something of the mechanic about it as she hit the town with her fellow Girl Aloud, although we can't imagine many workmen would wear leopard-print wedge boots and ringlet extensions. Nicola, meanwhile, was cute in a jeans and a hot-pink jacket.
Where? London, 13 December.
Verdict? Not as sexy as the Jingle Bell Ball jumpsuit, but Cheryl kinda carries it off.