iLightShow for iOS is the best way to connect your Philips Hue light bulbs to Spotify. Simply log in with your Spotify credentials on iLightShow while using Spotify App to listen to some songs. Then choose your lights and you're done. iLightShow on the App Store: https://itunes.apple.com/app/ilightshow/id1247273887 Website: https://ilightshow.net
