Bands Coldplay and the Killers managed to draw quite a celebrity crowd last night, as they performed for the charity Warchild concert, at the 02 Empire Shepards Bush in West London, 

Both Gywneth Paltrow and Chris Martin surprised waiting paps by being unusually friendly. Quick exits were replaced with happy smiles and autographs for fans. Other attendees included actress' Sienna Miller, Gemma Arterton and Anna Friel. Musicians CoCo Sumner, Gary Barlow, Courtney Love, Natalie Imbruglia, Richard Ashcroft, Bono and the Edge .