Supercrooo is a Prague-based hip hop and rap formation consisting of two musicians. Its birth was preceded by the group K. O. Kru, co-founded in 1998 by Jan Daněk aka Hugo Toxxx or Hack with Daniel Ďurech performing under the nickname James Cole and Phat. The duo debuted with the vinyl single "Nádech / Náš cíl", which was released by P.A.trick records in 2001. The single, together with a remix by DJ Wich, appeared on the all-Czech compilation Lyrik Derby.
The debut album Toxic Funk was released in 2004 on MadDrum Records. This music is full of uncompromising approach to lyrics, controversy, perverse themes and unsampled, toxic electro beats.