Bee Gees legend Robin Gibb, backed by the BBC Concert Orchestra, performed at the Roundhouse Main Space for the BBC Electric Proms on Saturday (October 25). The performance celebrated the 30th anniversary of the film 'Saturday Night Fever', for which the Gibb brothers sang the soundtrack. Gibb was joined on stage by Ronan Keating, Stephen Gateley, Sam Sparro, Sharleen Spiteri, Gabriella Cilmi and Bryn Christopher to help him through his 18-song set, which opened with Beethoven's Fifth Symphony. Pic: PA Photos