Liberty is the sixth studio album by Duran Duran, released on 20 August 1990. It entered the top 10 in the UK albums chart, and garnered a #6 hit for the single "Serious" in Japan Liberty is the first Duran Duran album to feature songwriting credits outside the original five band members. Guitarist Warren Cuccurullo and drummer Sterling Campbell were made permanent band members and given songwriting credits, although Campbell would leave in early 1991, before the band began work on their subsequent hit The Wedding Album. Writing and rehearsing for the album took place intermittently between May and July 1989; demo sessions took place in August and September, and final recording began on 9 October at Olympic Studios, with producer Chris Kimsey and engineer Chris Potter. Recording, production and overdubbing of the many keyboard and vocal layers dragged on until March 1990, and the result was an album that many fans and critics considered bland and overproduced. In a 1998 interview with Goldmine magazine, bassist John Taylor admitted that he was struggling with his drug addictions during recording of the album. He said, "When we were in rehearsal, it seemed like we had a great album, but we weren't able to parlay it into a great album in the studio, whatever. I can just remember smoking hash oil, that's all I can really remember about making that album." Vocalist Simon Le Bon commented "We went into a barn in Sussex and started jamming away, and before we got finished, it