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the bee gees

The Bee Gees singing "How Deep is Your Love" in 1998.

In 1998, the Bee Gees, brothers Barry, Robin and Maurice Gibb, stopped by ITV’s “Des O'Connor Tonight” with acoustic guitars in hand to promote their recent release, “One Night Only,” an album and live concert DVD featuring many of the band’s biggest hits.

The highlight of the performance was when Barry got ready to strum his guitar for a performance of “How Deep is Your Love,” the 1977 megahit from the “Saturday Night Fever Soundtrack,” but instead chose to sing the song a capella.

Barry starts the song solo in his beautiful falsetto, but then, when his brothers join him, they create a wonderful harmony that only brothers can make. The show’s host, Des O’Conner, a notable singer himself, even joins in for a few bars.

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Earlier in the performance, the brothers played their version of “Islands in the Stream,” a song made famous by Dolly Parton and Kenny Rodgers in 1983 that was written by the Bee Gees. In 1998, the song was enjoying a resurgence as its melody was used in the song “Ghetto Superstar” by Pras of The Fugees.

Robin Gibb later admitted that the song was initially written for Marvin Gaye to sing, but he was tragically murdered in 1984 by his father. The band also had Diana Ross in mind while composing the tune.

During the appearance, the band also sang “Guilty,” a song that the Bee Gees wrote for Barbara Streisand and Barry produced in 1980.

You can watch the entire performance in the video below.

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This article originally appeared in August