John Corabi has worked with Eric Singer .
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 and drummer Eric Singer ) , Ratt ( as a guitarist ) , Twenty 4 Seven ( with his then Ratt bandmate Bobby Blotzer ) , Zen Lunatic , Brides of Destruction , and Angel City Outlaws ( with his then Ratt bandmates Robbie Crane and Bobby Blotzer , and former Ratt guitarist Keri Kelli , who he replaced in Ratt ) .
John Corabi