Spotify has already enabled the targeted ads across its platform. Advertisers will have access to the 70 million people that use Spotify's free, ad-supported streaming across 59 countries. These buyers will be able to look for user groups who might be the best matches for the products they're selling. For example, a clothing company might want to target males with smooth jazz playlists located in London aged 18-25.

The ads will be 15- and 30-second audio spots. Though they might be more relevant to you than before, they're still another friendly reminder that your information is a commodity in this digital age.

Update: A previous version of this story asserted user data was being sold, this is not the case.