Neil Young and Graham Nash are significant figures in rock and folk music, known for their solo careers as well as their contributions to the supergroup, Crosby, Stills, Nash & Young (CSNY). Young's signature style combines elements of folk, rock, and country, with his distinctive high-pitched, plaintive vocals and personal lyricism, while Nash is recognized for his bright, harmonious pop sensibilities. They've produced influential works such as Young's "Heart of Gold" and Nash's "Teach Your Children", which have left indelible marks on the genre. Their music, characterized by powerful harmonies and politically charged lyrics, played a pivotal role in the 1960s and 1970s counterculture movements.