Horizontal is the fourth studio album by the Bee Gees, and their second album to receive an international release. The LP was released in early 1968, and included the international hit singles "Massachusetts" and "World". On 5 February 2007, Reprise Records reissued Horizontal with both stereo and mono mixes on one disc and a bonus disc of unreleased songs, non-album tracks, and alternate takes. The album was released in Polydor in many countries and on Atco only in the US and Canada. "And the Sun Will Shine" (backed by "Really and Sincerely") was released as a single only in France. The influences displayed on the album range from the Beatles to baroque pop.