Which of these music product launches generated $1 billion in revenue within its first year, despite initial industry skepticism about its business model?

Test your knowledge about revolutionary product launches in the music industry that changed how we consume music. From physical formats to digital innovations, these products have shaped the way artists distribute their work and how fans experience music. Can you identify which product launch truly revolutionized the industry at a pivotal moment?

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

Apple's iTunes Music Store (2003)
Spotify's Premium subscription service (2008)
Amazon's MP3 Store (2007)
Beats Music streaming service (2014)