In July 1973, a week after announcing Ziggy Stardust’s retirement, David Bowie flew to France to record an album of 60s-era cover versions. Although the resulting Pin Ups remains the dark horse of his 1970s catalogue, it captures Bowie at his most relaxed, and his right-hand man Mick Ronson at the height of his powers. Even Starmen need to come down to earth now and then.