Andrew Roy Gibb was an English and Australian singer and songwriter. He was the younger brother of Barry, Robin, and Maurice Gibb, musicians who had formed the Bee Gees during the mid-1960s.

Sir Barry Alan Crompton Gibb is an English musician, singer, songwriter and record producer. Along with his younger brothers, Robin and Maurice, he rose to worldwide fame as a member of the Bee Gees, one of the most commercially successful groups in the history of popular music. Gibb is well known for his wide vocal range including a far-reaching high-pitched falsetto. Gibb's career has spanned over 60 years.