J.A.R. is a Czech band blending funk, rock, and hip hop, founded in 1989 in Prague. The group features members active in various other music projects and solo acts, who come together to create new material and perform. Known for their energetic live shows, they celebrate their anniversary every year with a special concert at Lucerna Music Bar in Prague. By 2025, J.A.R. has released eleven studio albums, along with a compilation, a remix album, and a video album.