When Pink Floyd hit the road in June of 1974, they were debuting a substantially upgraded production including the circular video screen that quickly became a signature element of their concerts. The British group aired out an early version of "Shine on You Crazy Diamond," which previewed 1975's Wish You Were Here album. Listen to Pink Floyd Perform 'Shine on You Crazy Diamond' Live at Wembley"Those songs came together in a tiny rehearsal room," David Gilmour recalls now in a new interview with UCR that you can listen to below. READ MORE: How to Hear and Watch Pink Floyd's 'Wish You Were Here' TourHow Did Those Early Years with Pink Floyd Inspire David's Future? The 2007 "Barn Jam" featuring his current touring band at the time, including longtime Pink Floyd bandmate Richard Wright, continues to bear fruit nearly two decades later.