With their colorful costumes and England's first light show, Pink Floyd epitomized the rock music of the 1960s – and in the 1970s, they achieved international superstar status. Their album "Dark Side of the Moon" remained on the charts for 14 years; with "The Wall," they created an epic concept album and a stage spectacle that outlasted all the conflicts within the band. At the beginning of the 21st century, Pink Floyd stands as one of the few icons of rock music that has not lost any of its aura over four decades. Throughout the years, Roger Waters, David Gilmour, Nick Mason, and Rick Wright consistently resisted all attempts by journalists and media efforts to look behind the scenes of their successful enterprise. American journalist Nicholas Schaffner was the first to gain comprehensive access in 1988.