Likely I'd heard of them from a compilation album. Around this time I'd acquired a few samplers from Viennese and other European labels which left albums such as Kruder&Dorfmeister, Vienna Scientists, UKO, and other mellow artists with a tinge of dance. All great recommendations there, by the way.
Later on, Boozoo started some more dancy/upbeat releases that were different but still engaging. My preference is for their earlier tunes. Juke Joint is a particularly great mix tape from them.
Still a regular rotation record, for sure, mixed together with music from their early label-mates Jaffa.