Distinct appearance and clothing was one of the immediate legacies of hippies worldwide. During the 1960s and 1970s, mustaches, beards and long hair became more commonplace and colorful, while multi-ethnic clothing dominated the fashion world. Since that time, a wide range of personal appearance options and clothing styles, including nudity, have become more widely acceptable, all of which was uncommon before the hippie era. Hippies also inspired the decline in popularity of the necktie and other "business" clothing, which had been unavoidable for men during the 1950s and early 1960s. Additionally, hippie fashion itself has been commonplace in the years since the 1960s in clothing and accessories, particularly the peace symbol. Astrology, including everything from serious study to whimsical amusement regarding personal traits, was integral to hippie culture. The generation of the 1970s became influenced by the hippie and the 60s countercultural legacy. As such in New York City musicians and audiences from the female, homosexual, Black, and Latino communities adopted several traits from the hippies and psychedelia. They included overwhelming sound, free-form dancing, multi-colored, pulsating lighting, colorful costumes, and hallucinogens. Psychedelic soul groups like the Chambers Brothers and especially Sly and The Family Stone influenced proto-disco acts such as Isaac Hayes, Willie Hutch and the Philadelphia Sound. In addition, the perceived positivity, lack of irony, and earnestness of the hippies informed proto-disco music like M.F.S.B.'s album "Love Is the Message".