Bobby Gillespie’s Primal Scream were a bog standard indie-rock band until they were introduced to MDMA and collaborated with acid house DJ Andrew Weatherall on a track called “Loaded” which took a rubbish ballad from their previous album and remixed it into an eccied rave-up. “Screamadelica” followed - a diverse concept record of gospel, post-punk, soul and blues that charts the ecstasy and the agony of the ultimate night out with joyous highs and terrifying comedowns. Melody Maker said it was the best album of 1991, and it won the inaugural Mercury Prize too.