In the '80s, the Scorpions reinvented themselves so thoroughly as a pop-metal act heavy on power balladry that an entire generation of fans had no idea the group's history stretches all the way back to 1972. On 1975's In Trance, they really tightened their attack. Gone are the bombastic prog-rock moves that weighed down their first two LPs. Given new freedom, the twin leads of Ulrich Roth and Rudolf Schenker are vicious on both "Top of the Bill" and "Dark Lady," one of the best album openers of the '70s. On top of that, the cover art nails the guitar-as-phallus imagery.