Infestation is the seventh and final studio album by American glam metal band Ratt.

In a February 17, 2010 interview with the Artisan News Service, Stephen Pearcy said of Infestation: "We wanted this to be like something that we would have written right after [1984's] Out of the Cellar.

We definitely went back to basics with the mind set of a band with a lot of excitement and some great songs to get out.

"[10] In a March 18, 2010 interview with Metalholic Magazine, guitarist Warren DeMartini said of Infestation: "It really exceeded our expectations.

We were looking for more uptempo ideas and the double leads that Robbin Crosby and I started doing back in 1983.