CKY is an American rock band from West Chester, Pennsylvania. Formed in 1998 by lead vocalist and guitarist Deron Miller, guitarist and backing vocalist Chad I Ginsburg, and drummer Jess Margera, the group currently features Ginsburg, Margera and bassist Matt Deis. Originally known by the full name Camp Kill Yourself, and later briefly credited as simply Camp, CKY found initial recognition through its musical contributions to the CKY video series and the TV series Jackass, both of which featured Margera's brother Bam. The band self-released its debut album Volume 1 in 1999, featuring a number of songs from the CKY videos.