High Quality Content by WIKIPEDIA articles! Trevor Bolder (born 9 June 1950, Kingston upon Hull, England) is an English rock bass guitarist. Bolder was active in his native R&B scene in the mid 1960s. He first came to prominence in The Rats, which also featured Mick Ronson on lead guitar. His big break arrived in 1971, when he replaced Tony Visconti in David Bowie's backing band, which would soon be known as the Spiders from Mars. Bolder's bass (and occasional trumpet) work appeared on the studio albums Hunky Dory (1971), The Rise and Fall of Ziggy Stardust and the Spiders from Mars (1972), Aladdin Sane (1973), and Pin Ups (1973), the Spiders' swan song with their leader