How do you listen to top 40 songs for free?

To listen to top 40 songs for free, use the Topsify playlist service for Spotify. Topsify is a tool that allows Spotify users to access the U.S., U.K. and Sweden top 40 charts for free, as well as offering playlists for up-and-coming artists.

Spotify is a free, ad-supported service that is available for mobile devices and desktop computers, with a desktop app and a browser-based version also available. For easy access to Top 40 playlists, sign up for a Spotify account and use it to subscribe to the Topsify playlist for the specific country or genre Top 40 in which you're interested.