The more Hi-NRG-oriented artists were typically played only during special "mix" shows, and it was often necessary to go to a club to hear Eurodance music. While Eurodance did become popular with club DJs in the United States, radio stations were cautious about playing anything that sounded too much like disco during most of the 1980s and 1990s. By the end of the 1990s, however, some of the later acts such as Italian group Eiffel 65 and Danish group Aqua did receive extensive airplay.