Menu Spot is a simple but full-featured player for the Spotify music streaming service that runs in your menu bar. The app removes extraneous title details (remaster, year, etc.) to free up as much precious menu bar space as possible.
With Plaaying you control media (support for iTunes and Spotify) played on your Mac. The menu bar app is available in four attractive, proactive designs. Auto-Share can tell Twitter every song and video that plays without you lifting a finger.
SmashTunes lets you control iTunes and Spotify from the menu bar. It displays the currently playing song right on your menu bar along with other information that you choose (like artist, album, duration, rating).