LONDON--Bee Gees singer Robin Gibb, who with brothers Barry and Maurice helped define the disco era with their falsetto harmonies and funky beats on smash hits such as "Stayin' Alive" and "Jive Talkin'," has died after a long fight with cancer. He was 62.

The singer had colon and liver cancer and, despite brief improvements in his health in recent months, passed away on Sunday evening.

"The...