Infestation is the seventh and final studio album by American glam metal band Ratt. It was released by Loud & Proud via Roadrunner Records, a then-sub-label of their longtime home Atlantic Records, on April 20, 2010. With the death of Robbin Crosby in 2002, guitar duty was taken over by Carlos Cavazo, formerly of Quiet Riot. The band would enter a turbulent period after the release of the album, and by 2018, all musicians had left except lead singer Stephen Pearcy.