 Further fusion subgenres have since emerged, including pop punk, electronic rock, rap rock, and rap metal, as well as conscious attempts to revisit rock's history, including the garage rock/post-punk and techno-pop revivals in the early 2000s.The late 2000s and 2010s saw a slow decline in the cultural relevancy of the genre, being usurped by hip-hop as the most popular genre in the United States in 2017.Rock music has also embodied and served as the vehicle for cultural and social movements, leading to major subcultures including mods and rockers in the UK and the hippie counterculture that spread out from San Francisco in the US in the 1960s.