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.

Maurice Ernest Gibb was a British musician. He achieved worldwide fame as a member of the pop group Bee Gees. Although his elder brother Barry Gibb and fraternal twin brother Robin Gibb were the group's main lead singers, most of their albums included at least one or two songs featuring Maurice's lead vocals, including "Lay It on Me", "Country Woman" and "On Time". The Bee Gees are one of the most successful pop-rock groups of all time.