Cool Brittannia Festival 2018 – Perhaps the coolest festival of them all Music News by Editor - August 11, 20180 This summer sees the launch of a brand new epic music festival Cool Britannia — which will take place at Knebworth — the stately home of rock. The premier of Britpop Classical will be the opening act on Saturday 1st September at Cool Britannia Festival.Britpop Classical features a full rock back of some of the