Robin Gibb, one of the three singing brothers of the Bee Gees, the long-running Anglo-Australian pop group whose chirping falsettos and hook-laden disco hits like “Jive Talkin’” and “You Should Be Dancing” shot them to worldwide fame in the 1970s, died Sunday in London. He was 62 and lived in Thame, Oxfordshire, England.

The cause was complications of cancer and intestinal surgery, his family said in a statement.

Gibb had been hospitalized for intestinal problems several times in the past two years. Cancer had spread from his colon to his liver, and in the weeks before his death he had pneumonia and for a while was in a coma.

Gibb was the second Bee Gee and third Gibb brother to die. His fraternal twin and fellow Bee Gee, Maurice, died of complications of a twisted intestine in 2003 at 53. The youngest brother, Andy, who had a successful solo career, was 30 when he died of heart failure, in 1988.

With brilliant smiles, polished funk and adenoidal close harmonies, the Bee Gees — Barry, Robin and Maurice Gibb — were disco’s ambassadors to Middle America in the mid- to late 1970s, embodying the peacocked look of the time in their open-chested leisure suits and gold medallions.

They sold well over 100 million albums and had six consecutive No. 1 singles from 1977 to 1979. They were also inextricably tied to the disco era’s defining movie, “Saturday Night Fever,” a showcase for their music that included the hit “Stayin’ Alive,” its propulsive beat in step with the strut of the film’s star, John Travolta.

Barry, the oldest brother, was the dominant Bee Gee for most of the group’s existence. But the lead singer for many of the early hits was Robin, whose breaking voice, gaunt frame and gloomy eyes were well suited to convey adolescent fragility. “I Started a Joke,” “I’ve Gotta Get a Message to You,” “Massachusetts” and other heavy-hearted songs dripping with strings brought the group to the top of the charts as one of the British Invasion’s most musically conservative groups.

“While other guys, like Ray Davies of the Kinks, were writing about social problems, we were writing about emotions,” Robin Gibb told a British newspaper last year. “They were something boys didn’t write about then because it was seen as a bit soft. But people love songs that melt your heart.”

According to Bee Gees lore, the boys’ first performance was sometime in the mid-1950s, and unplanned. They had been scheduled to perform as a lip-synching act at a movie theater in Manchester when the record broke, forcing them to sing for real.

The family moved to Australia in 1958, and before long the brothers, performing as the Bee Gees — for Brothers Gibb — began scoring local hits and appearing on television. They left for London in early 1967 and within weeks had signed with Robert Stigwood, the impresario who guided them in their peak years.

The band’s first single in Britain, “New York Mining Disaster 1941,” was released in April 1967 and reached the Top 20.

Robin briefly left the group in 1969 and tried out a solo career. After he rejoined his brothers, they scored their first No. 1 in the United States with “How Can You Mend a Broken Heart” in 1971. But with harder rock taking over, the Bee Gees’ popularity ebbed, reaching bottom in 1974 with a series of supper-club gigs in England to pay off tax debts.

At that point their label, Atlantic, sent the brothers to Miami for musical experimentation. There, with the 1975 album “Main Course,” they reinvented the Bee Gees’ sound with Latin and funk rhythms, electronic keyboards and vocals that owed a debt to Philadelphia soul. It brought the band its first hits in years: “Nights on Broadway” and “Jive Talkin’,” which went to No. 1.

From there it moved further toward disco. The soundtrack to “Saturday Night Fever,” in 1977 — with “You Should Be Dancing,” “How Deep Is Your Love?,” “Stayin’ Alive” and “Night Fever,” all No. 1s — became the biggest-selling album ever, until it was overtaken by Michael Jackson’s “Thriller” in 1984.