MKB Fraction Provisoire (Messageros Killers Boys) is the variable-geometry musical project of filmmaker and writer F.J. Ossang, founded in 1980 to feed a need for creativity fueled by the punk movement and the Industrial scene. The band’s music is characterized by a blend of punk rock, blues, and avant-garde influences, with Ossang’s poetic lyrics often addressing themes of alienation, decadence, and despair.

After a self-released EP in 1981, Provenance France, M.K.B. released their first LP, Terminal toxique, the following year. Over the years, the group went on to release a dozen albums, including several for the Bondage label. Its musical output is inseparable from the rest of the projects of its leader, a tireless activist in constant rebellion against the "prêt-à-penser".

"This record was invented in ten days. when Nagi Baz offered to let us use his studio for a week, we had just finished recording Doctor Chance 93. The plan was immediately to pay a sort of tribute to my writer friend Jean-François Charpin (1957-1987), an accomplice of the Sex Pistols, who had initiated the chalet du lac concert in september 1976, before creating the excellent and fleeting avant-garde magazine grabuge in 1978 (two issues published). We spent a whole weekend with jack belsen laying the foundations of six tracks from machine matrices, looping rhythms, while i wrote at full speed on the typewriter. on monday i finished formatting the raw lyrics while belsen recorded the rhythms. the next day, it was my turn to record the vocals as one - then jac berrocal and little drake played their instrumental parts. Two days of mixing later, it was finished. the following monday, Nagi Baz left his record label. after thirty years, the reissue of feu! (augmented by genotype from messagero killer boy, recorded just before i left for chile in 1994) turns out to be a double eulogy for j.-f. charpin, but also for Jack Belsen, who was abruptly snatched from life for one awful season, between late spring 2018 and his death on 7 december the following year. "

MKB has been highly regarded in the French underground music scene and has gained a cult following over the years. They are often associated with the No Wave and post-punk movements, and their music has been praised for its raw energy and unconventional sound.