The 1967-68 Tours (also known as The Bee Gees in Concert, Spring Tour '68, North American Tour) are a series of concerts held in 1967 and 1968 by English band, The Bee Gees. The tours promoted their third, fourth and fifth studio albums: Bee Gees' 1st (1967), Horizontal (1968) and Idea (1968). The band's line-up at that time was the Gibb brothers with Colin Petersen and Vince Melouney. Before the tours began, the group were the opening act for Fats Domino in London and Manchester.