Ratt is an American glam metal group formed in Los Angeles, CA and initially featured Stephen Pearcy (vocals), Robbin Crosby (guitar), Warren DeMartini (guitar), Juan Croucier (bass), and Bobby 'The Blotz' Blotzer (drums). They evolved out of 70s band Mickey Ratt, transforming into their present form in 1983, and embraced the Sunset Strip blend of pop hooks mixed with aggressive rock. Hitting a slick sound similar to the power pop of Cheap Trick as well as the metal of Iron Maiden, the band is best known for the multi-platinum album smashes 'Out of the Cellar' and 'Invasion of Your Privacy'.
Ratt released a self-titled mini-album in 1983 on a local label, the release now often known as just 'Ratt EP', and they struck up a close personal friendship with members of Mötley Crüe, friendly rivals that shared the same hard partying lifestyle. The aforementioned glam metal scene of southern California brought the fledgling band major inspiration. Ratt then made their breakthrough with their first full studio album, 'Out of the Cellar', which stayed in the Billboard Top 20 for six months. Single "Round and Round" became the signature song of the group. The album has since been certified as multi-platinum by the RIAA and continues to be loved by many metal fans.