J.A.R. is a Czech funk-rock-rap band.

It was founded symbolically on 17 November 1989. The basic line-up at that time consisted of the author of music Roman Holý and the duo of "academic" rappers Oto Klempíř and Michael Viktořík.

J.A.R. does not function as a band in the true sense of the word, but rather as an occasional meeting of leading Czech jazzmen and music producers. The members of J.A.R. are in their own bands and devote themselves to their own projects.

All the more precious is their premiere at this year's pARTy ve FRANTIŠKÁNU.