The band was formed in January 1982 by 17-year-old high school friends, guitarists Saša Vujić "Vuja", Aleksandar Vojinović "Aca", bassist Milorad Mišić "Miša" and drummer Rajko Todosavljević, becoming the first punk rock band in Kragujevac. Getting the name by an onomatopoeic sound "kvo" made by a frog in a cartoon, written in Cyrillic, the band name is often misspelled. The band had their first recordings released by English record labels on various artists compilations International Brigade, released in 1984, and Liberate, released in 1985. They also performed at local festivals, until the band members went to serve the army. On their return, in 1986, the band lineup changed as Mišić and Todosavljević left the band, Saša Vujić switched to vocals and his brother, Slobodan Vujić "Boban", joining the band as the new drummer. The new lineup started recording demos, releasing them independently through their own independent record label KBO! Records, and so the 1986 Tama, 1987 Nove obrade starih stvari, 1988 !OBK, and 1989 Moja sloboda, gave the band the opportunity to overreach local prominence. It is partially due to this fact that the band got the opportunity to perform in Budapest, Hungary, in March 1988, recording the show and releasing it as Live in Budapest. On May of the following year, the band performed in Thessaloniki, Greece, and having performed for four times in Hungary, in October, the band went to Vienna, Austria, performing as an opening act for Emils and Gorilla Biscuits.
1990s
The band's debut album, Forever Punk, recorded at the BelgradeO studio for only four hours, was released by the Greek record label Wipe Out Records in 1991, and the following album, Pozovi 93 was released by the Novi Sad record label Start Today Records in 1992. The band promoted the materials on tours of Yugoslavia, Hungary and Austria, and during the summer of 1991, the band toured Belgium and Netherlands. During 1992, the band performed in Skopje, Republic of Macedonia and prepared new material released on the CD Za jedan korak by the French record label Onkra from Toulouse in 1992. The band also performed at Ilirska Bistrica and Koper, Slovenia. In 1993, the band's song "Ubijte me" appeared on the various artists compilation The Dignity Of Human Being Is Vulnerable, released in Netherlands. In 1995, the band's song "IdI+odlazi" appeared on the anti-war compilation Mi za mir. The band's fourth official album, Svetlo ludila, prepared for about two years, was released by their own record label in 1997, and featured cover versions of Beethoven's "Ode to Joy" and "Grk" by Mikis Theodorakis. On October 1996, the band performed in KST in Belgrade and the cover versions of UK Subs "Organized Crime", Alphaville "Forever Young", renamed to "Forever Punk" and Abrasive Wheels "When the Punks Go Marching In", performed at the concert, appeared on the various artists compilation Punk You All, released in 1998. On December 1996, the band performed at the TV PolitikaPaket Aranžman TV show fifth anniversary, and the live versions of "Ubijte me", "Samoća" and "Lopovi" appeared on the various artists compilation Svi protiv svih in 1998. The band, with Drama and Propaganda 117, appeared on the Goran Matić Život za sebe movie soundtrack, with the songs "Balkanska rapsodija", "Ludilo" and "Pada noć" and rerelesed on CD the first two studio albums through KBO! Records.
2000s
The band recorded a cover album Menjajte stanicu, released in 2001, featuring cover versions of ABBA, Električni Orgazam, Pet Shop Boys, Mike Oldfield, Orchestral Manoeuvres in the Dark, Billy Idol, Black and Prince songs. The band also appeared on the Know Your Rights various artists compilation with the songs "Zgubidan" and "What Can I Say", released by NGO Millennium in 2001. In 2002, the band appeared on the Ringeraja movie soundtrack with the cover of the Indexi single "Bacila je sve niz rijeku", featuring Zvoncekova Bilježnica member Toza Rabassa on guest vocals, for which a promotional video was also recorded. The band also released the studio albumDrugarska stvar, which featured more politically themed songs. This was the last release to feature Aleksandar Vojinović who left the band in 2005, being replaced by Thimble member Ivan Ivezić "Iveza". The new lineup recorded the new studio album in 2008 with the work title Prosta proza, the album was mixed and post-produced during the following year.
2010s
On October 2010, it was announced that during the following month the band would release the seventh studio and twelfth official band release Prosta proza, featuring the single "Tačka", previously released on the Internet for streaming and digital download as the first single The material to be released, featuring the tracks written since 1996, consists of thirteen out of thirty six new songs the band have so far recorded. In the autumn of 2014, the band participated in a tribute album to Novembar, entitled Tako mlad i tako čist, with a cover of Novembar song "Blues južne pruge".
