We’re big fans of collaborations; two ReverbNation artists joining forces, sharing ideas, and giving birth to ridiculously feel-good music. Meet alternative duo FEiN, who recently partnered up with house producer Christofi for a sweet-sounding, funky jam, “The Disco.” FEIN have been gaining attention from the likes of Spotify and Hype Machine. Their song “#Grownupz” received a lot of praise and traction — over 1 million plays on Spotify, features on several playlists, and featured on multiple blog via Hype Machine.  Head over to ReverbNation's blog to get the deets on their new single, learn about the benefits of collaborating with different types of artists, how their local community has shaped them as musicians, and more.