" Thicker Than Water" is a 1977 song by Andy Gibb

Andy Gibb

Andy Gibb was an English singer and teen idol, and the youngest brother of the family whose other male siblings formed the Bee Gees: Barry, Robin, and Maurice Gibb.-The early years:...

.

A demonstration of the Gibb brothers' U.S. chart domination in 1978, this song replaced the song by Andy's brothers, the Bee Gees

Bee Gees

The Bee Gees are a musical group that originally comprised three brothers: Barry, Robin, and Maurice Gibb. The trio was successful for most of their 40-plus years of recording music, but they had two distinct periods of exceptional success: as a pop act in the late 1960s and early 1970s, and as a...

, with their #1 single "Stayin' Alive

Stayin' Alive

"Stayin' Alive" is a song by the pop group Bee Gees from the Saturday Night Fever motion picture soundtrack. The song was written by the Bee Gees and produced by the Bee Gees, Albhy Galuten and Karl Richardson. It was released on 13 December 1977, as the second single from the Saturday Night Fever...

", when it reached #1 on the Hot 100 on March 4. This song was replaced at number one by the Bee Gees' own "Night Fever

Night Fever

"Night Fever" is a disco song, written and performed by The Bee Gees. It first appeared on the soundtrack to Saturday Night Fever. Producer Robert Stigwood wanted to call the film Saturday Night, but singer Robin Gibb expressed hesitation at the title. Stigwood liked the title Night Fever but was...

". This was then replaced by Yvonne Elliman

Yvonne Elliman

Yvonne Marianne Elliman is an American singer who performed for four years in the first cast of Jesus Christ Superstar...

's "If I Can't Have You

If I Can't Have You

"If I Can't Have You" is a song written by Barry, Robin and Maurice Gibb of the Bee Gees. It was most famously recorded by Yvonne Elliman for the Saturday Night Fever soundtrack.-Background:...

". Since Barry Gibb

Barry Gibb

Barry Alan Crompton Gibb, CBE , is a singer, songwriter and producer. He was born in the Isle of Man to English parents. With his brothers Robin and Maurice, he formed The Bee Gees, one of the most successful pop groups of all time. The trio got their start in Australia, and found their major...

 had a hand in writing all four of these songs, he became the only person in history to write four consecutive US Number One singles; this feat has not been matched to this day.