Relive the Bee Gees' flawless live a capella performance of 'How Deep Is Your Love'

We're throwing it back to 1998 to when brothers Barry, Robin, and Maurice Gibb gave their iconic song 'How Deep Is Your Love' a unique makeover on British TV.

Stripping back the 1977 hit for an impromptu a capella rendition on Des O'Connor Tonight, the harmonies the three Bee Gees have is truly spine-tingling.

The acoustics in the TV studio are perfect for the performance and host Des O'Connor is clearly completely enchanted by the singers.

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The song became a huge hit after being used on the soundtrack for the John Travolta film Saturday Night Fever.

It's no wonder the Brothers Gibb sold nearly 220 million records and won 10 Grammy Awards.

Barry is the only surviving member of the band, following the deaths of twins Maurice (2003) and Robin (2012).