Celebration – Forty Years of Rock

[Drummer] Russell [Gilbrook] is a bit of an animal, so they sound livelier than ever.

"[2] Two tracks were written specifically for this release: 'Only Human' ("A bit of an '80s vibe," said Bolder) and 'Corridors of Madness'.

A double special edition, in digipak format, features a live DVD recorded at the Sweden Rock Festival.

A collector's edition adds a vinyl single; its two songs also recorded at the Sweden Rock Festival, and not included on the DVD.

In 2015, keyboardist Phil Lanzon released a music video for "Corridors of Madness", featuring the footage filmed on tour in Israel and the United States.