Who was the original lead singer for the band Pink Floyd?

Roger Keith "Syd" Barrett (6 January 1946 – 7 July 2006) was an English singer, songwriter, musician, composer, and painter. Best known as a founded member of the band Pink Floyd, Barrett was the lead singer, guitarist and principal songwriter in its early years and is credited with naming the band. Barrett was no longer with Pink Floyd in April 1968 after David Gilmour took over as their new guitarist, and was briefly hospitalised amid speculation of mental illness.

Barrett's innovative guitar work and exploration of experimental techniques such as dissonance, distortion and feedback influenced many musicians. His recordings are also noted for their strongly English-accented vocal delivery. After leaving the music industry, Barrett continued with painting and dedicated himself to gardening. Pink Floyd wrote and recorded several tributes to him, most notably the 1975 album Wish You Were Here, which included "Shine On You Crazy Diamond", as homage to Barrett.

The band Pink Floyd continues to be an influence to many even after Syd had moved on from the band and passed away. Roger Waters and David Gilmour kept the same genre that Syd had started and kept the legacy of the band with Syd's legacy.