Overkill is an American thrash metal band formed in 1980 in New Jersey. The band has been active since 1984, releasing 16 studio albums, 2 EPs, 2 live albums and a "covers" album. The band also has a notable mascot (named Chaly), a skeletal bat with a skull-like face, bony wings, and green eyes. It has appeared on most of their album covers. Overkill has gone through many line-up changes, with singer Bobby "Blitz" Ellsworth and bassist D.D. Verni remaining the only consistent members. Along with Anthrax the band is one of the most successful East coast thrash metal bands.