"Silly Boy Blue" is a song written and recorded by English singer-songwriter David Bowie. Originally demoed in 1965 as a mod-influenced track about a teenage runaway, it was revised in 1966 with new lyrics and released on Bowie's self-titled debut album in June 1967. This version reflects Bowie's fascination with Tibetan Buddhism, featuring various spiritual and geographic references in the lyrics and varied instrumentation such as a trumpet, cello and Chinese gong. Bowie remade the song twice during his stint with the Riot Squad in April 1967: as an instrumental for live performances and acoustically, which has appeared on compilations.