John Corabi (born on April 26, 1959 in Philadelphia, Pennsylvania) is a heavy metal singer and guitarist who has worked with such bands as Angora, The Scream, Mötley Crüe, Union and ESP (both with former KISS lead guitarist Bruce Kulick), Ratt (as a guitarist), Twenty 4 Seven (with his Ratt bandmate Bobby Blotzer), Zen Lunatic, Brides of Destruction, and Angel City Outlaws (with his Ratt bandmates Robbie Crane and Bobby Blotzer, and former Ratt guitarist Keri Kelli).

After Mötley Crüe parted ways with lead singer Vince Neil in 1992, Corabi was hired as his replacement. Bassist Nikki Sixx and drummer Tommy Lee stated that the band would benefit from the addition of John`s voice (deeper and more powerful than Neil`s) and having another musician contribute to the songwriting. However, Corabi`s voice did not have the same effect as his predecessor which alienated some fans and the record label. Corabi recorded the self-titled Mötley Crüe album in 1994 and the EP Quaternary. Though the music was heavier and more elaborate than the rest of the Mötley Crüe catalog, it did not sell as well as previous releases from the band. During the early stages of the writing of a new album which would become Generation Swine, Mötley Crüe`s record label refused to provide funds to record the album unless Vince Neil was let back in the band. Mötley Crüe accepted the request and by 1997 Corabi was replaced by the returning Vince Neil. Many of the songs from the early writing session were used on the album and Corabi is credited on the liner notes of a few songs as a co-writer.