The evolution of popular music heritage reflects changing perceptions of its cultural significance over time, particularly through generational memory and nostalgia. Initially, popular music was seen as ephemeral and low culture, but as post-war generations aged, they began to value it as a significant cultural force. This shift led to the emergence of terms like "classic rock" and "classic pop," signifying a cultural consecration of certain artists and albums. Museums and music halls of fame started celebrating popular music history, often with a generational bias favoring the 1960s and 1970s. The internet furthered this by allowing fans to create and share their own heritage narratives, challenging formal representations. As generations evolve, the cultural significance of popular music heritage continues to shift, with newer generations defining what is considered culturally valuable and significant.