SpotiMy - Play/Pause and Next/Previous functions for Spotify directly on your Menu Bar!
Spotify - Map shows when two people play same song at same time
Last.fm - The world's largest online music service. Listen online, find out more about your favourite artists, and get music recommendations, only at Last.fm
Covergloobus - This is a simple application to show the cover and the info of what is playing in your favorite...
SoundCloud - Enjoy music & follow favourite artists
Owlead - Grow your Twitter with valuable followers, effortless