The Bee Gees are best known for their iconic disco soundtrack to 1977's Saturday Night Fever, which included hits like "Stayin' Alive" and "Night Fever." The group had nine No. 1 singles in the '70s, but their pop career continued throughout the next four decades.
Robin Gibb had battled colon cancer, a twisted intestine, a blood clot, and pneumonia that left him in a coma. But miraculously, he seemed to be on the mend, surprising doctors with his recovery just last month.
Barry is now the last Gibb brother alive — Andy (who had a solo career outside of the Bee Gees) died in 1988, and Robin's twin Maurice died in 2003.
[Image via AP]