Long since its competition (like Instagram) got the feature, Spotify finally lets you share the music you listen to directly to Snapchat. If you have Snapchat and Spotify in the same device, Snapchat will now be an option you'll see in Spotify's share menu. The app will automatically create a snap with the song info and album art. Just like with Instagram, you can send this to individual Snapchat friends or have it posted on your story. You can share songs, albums, playlists, or podcasts. Now, if you get a Spotify share on Snapchat, you can swipe up to start listening to the song sent to you.
Source: The Verge