Nick Mason is the only member to appear on every Pink Floyd album.

The statement is true because Nick Mason, the drummer and one of the founding members of Pink Floyd, is the only member who has appeared on every Pink Floyd studio album. While the band's lineup changed over the years, with members leaving or being replaced, Mason remained a consistent presence in the band and contributed to the recording of every album. This consistency and contribution have made him the only member to have appeared on all Pink Floyd albums released to date.