Relentless Reckless Forever was recorded at Finland's Petrax Studios, during August and September 2010. "We worked super hard on this album, at least for me it was pretty much no sleep or rest for six weeks," stated Laiho. "But we were determined to make the best COB album ever, so we were willing to do whatever it took. Of course, having our producer Matt Hyde kicking our asses 24/7 definitely made the results even better, so obviously we're more than anxious to get this album out there"