Open in Spotify

I would love it if there was a way to add the currently playing track to a Spotify playlist. Shazam has the “open in Spotify” ability and it has been life changing. I also use a radio app called Replaio that has this feature. I have added hundreds of songs to my library like this. The option could exist where the current “Tweet Track” is. It would be sweet! Perhaps other music subscription services could be added as well.