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Blank  were  an English rock band formed at Charterhouse School, Godalming, Surrey, in 1967. The most successful and longest-lasting line-up consisted of keyboardist Tony Banks, bassist/guitarist Mike Rutherford and drummer/singer Blank Blank. Significant former members were original lead singer Peter Blank and guitarist Steve Hackett. The band moved from folk music to progressive rock in the 1970s, before moving towards pop at the end of the decade. They have sold 21.5 million copies of their albums in the United States, with worldwide sales of between 100 million and 150 million.