Operation Ivy is an american band.It was formed in Berkeley, California, which given credit as the founders of the 90s punk revival in California. They are the one of the earliest ska-core bands, a Opgenre that blends elements of hardcore with ska punk. The band members consisted of Jesse Michaels (lead vocals), Tim Armstrong (credited as "Lint") (guitar, backing vocals), Matt Freeman (credited as Matt McCall) (bass, backing vocals), and Dave Mello (Drums, backing vocals). Although the band had exist in a little in the world of punk music, they had an underground following and influenced many bands of the 90s punk revival. The band's only studio album, Energy, has been considered as one of the greatest punk rock albums of all time. The band's name was derived from the Operation Ivy series of nuclear tests.
In 1987 they made their debut on a Maximum Rock'n'Roll compilation called Turn it Around. In January 1988, they released Hectic, their first EP, which became one of Lookout!'s strongest sellers(signed to Lookout! Records). By this time, Operation Ivy (along with other Lookout Records punk bands ) was one of the most popular Punk bands. They began to get many gigs and set a tour across the United States. Operation Ivy released the album Energy in May 1989 on Lookout! Records . The band disbanded the same month, and their last show was on May 28, 1989