In a 53 week period from July 30, 1977 to July 29, 1978 The Brothers Gibb (The Bee Gees, brothers Barry, Maurice and Robin, or their younger brother Andy) held the Number 1 spot for 31 weeks.
July 30 – August 13 and September 17, 1977 (4) “I Just Want to be Your Everything” – Andy Gibb
December 24, 1977 – January 7, 1978 (3) “How Deep is Your Love – Bee Gees
February 4 – February 25 ( 4) “Stayin” Alive” – Bee Gees
March 4 – March 11 (2) ” (Love is) Ticker than Water” – Andy Gibb
March 18 – May 6 (8) “Night Fever” – Bee Gees
May 13 – “If I Can’t Have You” – Yvonne Elliman (Written by the Bee Gees)
June 17 – July 29 (7) – “Shadow Dancing” – Andy Gibb
During this 53 week period the only artists to have a Number 1 song were:
August 20 – September 10 & September 24 (5) – “Best of my Love” The Emotions
October 1 & 8 (2) “Star Wars Theme” – Meco
October 15 – December 17 (10) – “You Light Up My Life” Debby Boone
January 14 – January 28 (3) – “Baby Come Back: – Player
May 20 & 27 (2) – “With a Little Luck” – Wings
June 3 – “Too Much, Too Little, Too Late” – Johnny Mathis and Deniece Williams
June 10 – “You’re the One That I Want” – John Travolta and Olivia Newton-John
The movie “Grease” would have another Number 1 song in 1978, its theme song “Grease” by Frankie Valli and written by Barry Gibb. It would spend 2 weeks at Number 1, August 26 and September 2.