Sienna Miller: St Paul's Carol Service!

Sienna Miller gets into the holiday spirit for the St Paul’s Knightsbridge carol service on Tuesday (December 7) in London, England.

Over the weekend, the 28-year-old actress stepped out at The Young Vic Theatre to support her boyfriend Jude Law ,who performed in a benefit performance of Belarus: Zone of Silence.

Last week, Sienna lit up the famous landmark, the London Eye, in red for World AIDS Day.