The Bee Gees were a musical group composed of three brothers, Barry, Robin, and Maurice Gibb. The crossword solutions for the term 'Bee Gees Brother' are Gibb (4 letters), Gibbs (5 letters), Odessa (6 letters), and HES (3 letters). Gibb is a shortened version of the last name of the three brothers, while Gibbs is the plural form of the same name. Odessa was the name of the brothers' mother, and HES is an abbreviation of Maurice's first name.