Lily Allen launches Lucy in Disguise

Lily Allen and her sister Sarah Owen celebrated the launch of their vintage store Lucy in Disguise last night.

The sisters have teamed up for the joint fashion venture in London's Covent Garden. It also features sponsorship from PlayStation Move.

A series of celebrities attended the event, as Allen's friends Daisy Lowe and Jaime Winstone posed together for photographers. Other attendees included Allen's boyfriend Sam Cooper, The Saturdays singer Frankie Sandford and T4 presenter Miquita Oliver.

The in-store launch was followed by an after-party at the Groucho Club.

Speaking to the Daily Mail, Owen said: "Growing up, we were very different people. In the past there were lots of problems for us as sisters. We didn't really understand each other." However, the pair settled their differences after Allen dedicated the song 'Back To The Start' from her album It's Not Me, It's You to her sister.

Allen has previously said of her decision to work with Owen: "I trust her implicitly, which is crucial when choosing a business partner."