Conversation so far:
What is the Rolling Stones' legacy?
Since their formation in 1962, the Rolling Stones have survived multiple feuds. They have released 30 studio albums, 23 live albums, 25 compilation albums and 120 singles.
How were The Rolling Stones different than other bands?
The Rolling Stones are also credited with changing the whole business model of popular music.

Question: How did they change the business model?
Self-contained rewrite: How did The Rolling Stones change the business model of popular music?