Question: Which American band was formed the earliest, CKY or Violent Femmes?

<P0-S0> Pet Engine was an alternative/power-pop band that formed in Milwaukee, Wisconsin, in the early 1990s under the name "Blackfish" until a Florida-based "Blackfish" achieved success and forced a name change. <P0-S1>  Although they never achieved widespread commercial success, Pet Engine did release three albums and one EP on its label, Don't Records. <P0-S2>  The singles "Place to Breathe", "Reinventing the Wheel" and "Popular Teenage Disease" achieved a moderate amount of radio play in several American radio markets. <P0-S3>  The band was included on the Aware Records compilation volume 8 which also featured up-and-coming artists John Mayer and Howie Day. <P0-S4>  During their career, P.E. served as support for Oasis, Lemonheads, Goo Goo Dolls, Violent Femmes, Blind Melon, Verve Pipe and Mason Jennings among others. <P0-S5>  Their last official performance before a series of reunions came at Summerfest playing with Fountains of Wayne and Wilco. <P0-S6>  The band achieved a cult following in the Milwaukee music scene, often playing with popular Milwaukee bands like Citizen King and The Gufs, and were a regular act at Milwaukee's Summerfest for several years. <P0-S7>  Although Pet Engine broke up in early 2003, they were briefly reunited when they played at Summerfest 2006. <SEP> <P1-S0> CKY is an American rock band from West Chester, Pennsylvania. <P1-S1>  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. <P1-S2>  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. <P1-S3>  The band self-released its debut album "Volume 1" in 1999, featuring a number of songs from the "CKY" videos. <SEP> <P2-S0> Violent Femmes is an American folk punk band from Milwaukee, Wisconsin, initially active from 1980 to 2009. <P2-S1>  s of 2013 , the band is active again. <P2-S2>  The band is a trio, including singer, guitarist and songwriter Gordon Gano, bassist Brian Ritchie, and various drummers: Victor DeLorenzo (1980–1993, 2002–2009 and 2013), Guy Hoffman (1993–2002), Brian Viglione (2013–2016), and John Sparrow (2016-present). <SEP> <P3-S0> The Cuckoo's Nest (1976–1981) was a punk rock nightclub that was located at 1714 Placentia Avenue in Costa Mesa, California. <P3-S1>  There were often confrontations with the punks from the Cuckoo's Nest and the cowboys from Zubie's, which shared a parking lot. <P3-S2>  The police were constantly harassing the punks. <P3-S3>  Club owner Jerry Roach fought a number of court cases in an effort to keep the club alive, and in his 1981 film on the subject Urban Struggle he suggested that perhaps this was the first time that the authorities would stamp out a fad. <P3-S4>  The club was a hub of the punk rock in California. <P3-S5>  The club is notable as being home to the first slam pit. <P3-S6>  Jim trash from the crowd invented the slam dance at the Cuckoo's Nest according to American hardcore. <P3-S7>  the Bands such as 999 (band), The Ramones, XTC, The Damned, Redd Kross, Black Flag, T.S.O.L., Circle Jerks, the Vandals, Social Distortion, Agent Orange (band), Blondie Chaplin, JFA, David Johansen, uk Squeeze (band), the Adolescents, X (American band), the Go-Go's, The Lords of the New Church, Bad Brains, the Cramps, Iggy Pop, Dead Kennedys, the Dickies, Violent Femmes, Ultravox (with John Foxx), the Motels, the Bangles, the Fabulous Thunderbirds, John Cale, Suicidal Tendencies, Los Lobos, Fear (band), Wall of Voodoo, the Misfits (band), the Knack, the Crowd, The Blasters, 45 Grave, The Weirdos, China White (band), The Minutemen (band), Civil Defense (band), 20/20 (band), Pere Ubu, Suburban Lawns, sub humans, Magazine (band), The Plimsouls, Rubber City Rebels, Berlin (band), Middle Class (band), all played gigs there. <P3-S8>  The club was memorialized in the Vandals song "Pat Brown", a song about a club goer who actually tried to run the cops into the ground and urban struggle or I want to be a cowboy...couldn't make it as a punker.