UFO are widely regarded as one of the UK's best hard rock acts and this year (their final one) are celebrating their 50th year in existence with their final world tour. Phenomenon was the bands debut for Chrysalis and was a departure from the bands previous Space Rock sound to a Heavier rock style. This was also the debut for Michael Schenker who was going to have a major influence on the band in years to come. It was produced by Leo Lyons at Morgan Studios and contains some of the bands biggest rock anthems in Doctor Doctor and Rock Bottom. This set has been newly remastered from the original analog production masters by Andy Pearce. Presented here in an 8-panel digipak with o-card with new sleeve notes by Martin Hann - it contains a disc of B-Sides and unreleased demo versions as well as third disc of live material.