Reunited and it feels so good for Sienna Miller and Matthew Williamson who lit up London last night.
The actress was arm in arm with the designer as they hung out at Groucho Club in Soho with Cara and Poppy Delevingne.
Sienna wore a backless floral jumpsuit and with cork platforms, while Matthew opted for a cool blue shirt and trousers.
We love designers who stay loyal to their lady muses. Click on to see more of fashion's famous bffs…
