It's a Sunday night, and I'm at the O2 Shepherd's Bush Empire, undaunted by the typically miserable weather, for the final night of the Kenny Wayne Shepherd Band UK tour. The Empire is a long way from Shreveport, Louisiana, but it's also been twenty-five long years since the original release of ‘Trouble Is’ elevated the guitarist to the top of the blues tree. The platinum-selling record would spawn four crossover rock hits, building on the success of his debut album, ‘Ledbetter Heights’, and catapulted the young guitarist to headline status while still in his early twenties.