What was the title of the Bee Gees’ first U.S. Billboard Hot 100 number-one single?

The Bee Gees’ first U.S. Billboard Hot 100 number-one single was “How Can You Mend a Broken Heart.”

Barry and Robin Gibb wrote the song, and the Bee Gees recorded it in 1970. It was released in 1971 as the lead single from the album Trafalgar. Barry Gibb and Robin Gibb share the lead vocal, with Barry also contributing prominently to the recording’s emotional delivery.

The song reached number one on the Billboard Hot 100 in July 1971. It marked an important American breakthrough for the group, years before their disco period made them one of the biggest acts in the world.

Many listeners first encounter the Bee Gees through Saturday Night Fever songs such as “Stayin’ Alive” and “Night Fever,” but those were later U.S. number-one hits. “How Can You Mend a Broken Heart” belongs to the group’s earlier pop and soul-influenced period and is not a disco recording.