Overkill is an American thrash metal band, formed in 1980 in New Jersey. The band has been active since 1984, releasing 15 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 as founding members. Along with Anthrax (whose one-time lead guitarist, Dan Spitz, was also an early member of Overkill), the band is one of the most successful East Coast thrash metal bands.