Billboard writes:

Instagram announced Thursday (June 28) it will now allow users to add music to their Stories. The new feature will only be available in select countries at first, but will eventually be rolled out globally.

Users will be able to add music in the same way they add a sticker, choosing from a library of songs provided by the app that allows searching for a favorite song or browsing by categories like genre, mood and popular releases.

You can read more here.