Herman Rarebell, former Scorpions drummer, has taken on the role of producer, mentor, and even dirty-old-man vocalist on the single track, ‘Rock the Nightlife’. Rarebell had apparently been unhappy with the Scorpions' recent direction, which prompted his departure from the band. I'm gonna go ahead and speculate that this has a lot to do with Unbreakable's sound. "Knockout" features the charisma, German accents, and mix of ballads and upbeat fun Scorpions were known for, but what's lacking is the hammer-of-the-gods brilliance and maturity that made Scorpions Hall of Fame worthy rock and metal legends. Scorpions. Scorpions. Scorpions.
Tracks of note are the single, the title track, ‘Bad Blood’, and ‘Crazy Cat Lady’. The latter is catchy, but it feels like a missed chance at infectious silliness, instead playing it fairly straight with an ode to a fading beauty, past her days of fun and. . . Scorpions.
I'd recommend "Knockout" for anyone looking for a poppy, fun throwback to bands like Trixter, Poison (sans makeup), Warrant, and, um, Scorpions. Personally, I'd love hear them delve into stuff more reminiscent of ‘The Zoo’ and ‘No One Like You’ on their sophomore effort.