Juan Croucier

On May 12, 2012, Croucier reunited with RATT and performed with the band at the M3 Rock Festival for the first time since 1991.

Liquid Sunday played on the same bill for one show with Pearcy during the summer of 2006 and later formed a new band called Dirty Rats, consisting of Croucier on bass and lead vocals, Carlos Cavazo on guitar, and John Medina on drums. Carlos Cavazo left Dirty Rats to join Ratt, but later returned to Dirty Rats.

Croucier attended Torrance High School in Torrance, California. He played in various bands while in High School. Eventually he began playing original songs in his bands, and joined a band called Spike by age 16 that was strictly playing originals. In 1977 he started a new band called FireFoxx along with Ron Abrams on guitar and Bobby Blotzer on drums. Croucier served as bassist for Ratt during the 1980s, and was also very briefly in Quiet Riot and DuBrow. Croucier played with Quiet Riot shortly before Randy Rhoads left to play with Ozzy Osbourne and played with DuBrow in 1981 but did not record with either. Before he left DuBrow he introduced band leader Kevin DuBrow to Frankie Banali. They went on to form a new version of Quiet Riot, resulting in the debut record Metal Health.

Juan Croucier (born August 22, 1959, in Santiago de las Vegas, Cuba) is an American hard rock bassist and songwriter. He is best known as the bassist for the heavy metal band Ratt.