Robin Hugh Gibb, born on 22 December 1949 at the Jane Crookall Maternity Home in Douglas, Isle of Man, was a British singer and songwriter whose distinctive vibrato-laden soulful voice helped define the sound of one of the most successful pop groups in music history. As a member of the Bee Gees alongside his elder brother Barry Gibb and twin brother Maurice Gibb, he achieved global fame that spanned six decades, with record sales estimated in excess of 200 million, cementing the trio's status as one of the best-selling acts of all time.

Gibb's early life was marked by movement, as his English parents Hugh and Barbara relocated the family from the Isle of Man to Manchester for three years, where his younger brother Andy Gibb was born, before eventually settling in Redcliffe, just north of Brisbane, Australia. It was there that Gibb began his professional career as part of the family trio with Barry and Maurice, and when the group found their first taste of success, they returned to England, where they would go on to achieve worldwide fame. Music historian Paul Gambaccini later described Gibb as "one of the major figures in the history of British music" and "one of the best white soul voices ever," a testament to the emotional power and technical skill of his singing.

While primarily celebrated as a vocalist, Gibb was also a versatile musician who played piano, organ, and Mellotron on various early Bee Gees albums, including the ambitious 1969 release Odessa. He further demonstrated his individual artistry with his debut solo album, Robin's Reign, released in 1970, on which he played acoustic guitar and organ. Throughout his career, Gibb maintained a successful solo career alongside his work with the Bee Gees, showcasing his songwriting talents and distinct vocal identity beyond the group dynamic.

In recognition of their immense contribution to music, the Bee Gees were appointed CBEs in 2002, with the formal investiture at Buckingham Palace taking place in 2004. Beyond his performing career, Gibb served as president of the UK-based Heritage Foundation from 2008 to 2011, an organization dedicated to honouring figures in British culture. His final stage performance came in February 2012, when he appeared at a charity concert at the London Palladium supporting injured British servicemen. After battling numerous health issues in his later years, including colorectal cancer, Robin Gibb passed away on 20 May 2012 at the age of 62 from liver and kidney failure, leaving behind a legacy as one of the most influential voices in popular music.