William Earl Music industry veteran Michael Leon died on April 2 in Beverly Hills. He was 76. A cause of death was not revealed. A longtime label executive, who was married to powerhouse publicist Leslee Dart, Leon’s career began at Bell Records, home to albums in the 1960s and 1970s by Al Green, the 5th Dimension and Shirley Jones, whose repertoire was later absorbed by Arista. He went on to join revered independent label A&M Records in 1976, where he would ascend to senior VP and head of East Coast operations. While at A&M, Leon took on the role of VP of the Rock and Roll Hall of Fame Foundation and was tasked with spearheading the museum’s initial exhibition. Among his credits while at the Rock Hall: championing architect I.M. Pei for the museum contract as well as the city of Cleveland.