 Some early rappers and crews were Per Cussion, Grandmaster Funk, Quincy Jones III and the Ice Cold Rockers.Groups that achieved mainstream popularity in the early 1990s include Just D, Infinite Mass and The Latin Kings.In the late 1990s there was a second breakthrough and artists like Petter, Organism 12, Seron, PST-Q, Öris, Professor P, Supersci, Prop Dylan, Trainspotters, Thomas Rusiak, Timbuktu, Ken Ring and Looptroop became well-known.