Complex sentence: The group was also recognized as an artistic and fashion-conscious youth culture, and a definitive force in New York City's underground club culture at the time, and multiple Club Kids made long-lasting contributions to mainstream art and fashion.
Split into simpler sentences: The group was also recognized as an artistic and fashion-conscious youth culture, and were a definitive force in New York City's underground club culture at the time. Additionally, multiple Club Kids have made long-lasting contributions to mainstream art and fashion.