VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Muzzy - it’s a tiny and gorgeous iTunes companion that lives on your menu bar. For Mac OSX, its free!
MPV - MPV is an audio and movie player based on MPlayer and mplayer2.
SpotiMy - Play/Pause and Next/Previous functions for Spotify directly on your Menu Bar!
MPC-HC - MPC-HC, the free, open source media player for Windows. DownloadsNote. Supported Operating Systems: Windows® XP SP3 .
Skip Tunes - Control iTunes, Spotify, or Rdio from your Mac's menubar