The fruit of the Philadelphia recording sessions was "Young Americans" (1975). Biographer Christopher Sandford writes, "Over the years, most British rockers had tried, one way or another, to become black-by-extension. Few had succeeded as Bowie did now." The album's sound, which the singer identified as "plastic soul", constituted a radical shift in style that initially alienated many of his UK devotees. "Young Americans" yielded Bowie's first US number one, "Fame", co-written with John Lennon, who contributed backing vocals, and Carlos Alomar. Lennon called Bowie's work "great, but it's just rock'n'roll with lipstick on". Earning the distinction of being one of the first white artists to appear on the US variety show "Soul Train", Bowie mimed "Fame", as well as "Golden Years", his November single, which was originally offered to Elvis Presley, who declined it. "Young Americans" was a commercial success in both the US and the UK, and a re-issue of the 1969 single "Space Oddity" became Bowie's first number-one hit in the UK a few months after "Fame" achieved the same in the US. Despite his by now well established superstardom, Bowie, in the words of Sandford, "for all his record sales (over a million copies of "Ziggy Stardust" alone), existed essentially on loose change." In 1975, in a move echoing Ken Pitt's acrimonious dismissal five years earlier, Bowie fired his manager. At the culmination of the ensuing months-long legal dispute, he watched, as described by Sandford, "millions of dollars of his future earnings being surrendered" in what were "uniquely generous terms for Defries", then "shut himself up in West 20th Street, where for a week his howls could be heard through the locked attic door." Michael Lippman, Bowie's lawyer during the negotiations, became his new manager; Lippman in turn was awarded substantial compensation when Bowie fired him the following year.