It is fifty years since the release of Pink Floyd's first single and an exhibition dedicated to the band is currently on at London's Victoria and Albert Museum.

At the age of 73, the band's co-founder Roger Waters is still writing. In fact he is releasing another solo album called Is This the Life We Really Want?

He has been speaking to our reporter Nicola Stanbridge about his music... and Trump's wall.

(Image: Roger Waters, credit: AFP/Getty Images)