UPDATE: Hereâ€™s an article on the best Grooveshark and Limewire alternatives in 2017. Thanks to Joel Stephens for letting me know!
LimeWire Pirate Edition is free, open source software based on the final beta version of the popular LimeWire filesharing application. After Lime Wire LLC stopped distributing its software in October 2010, a horde of piratical monkeys climbed aboard the abandoned ship, mended its sails, polished its cannons and released it FREE to the community to help keep the Gnutella network alive.
LimeWire Pirate Edition is pure P2P software; it does not depend on any servers operated by Lime Wire LLC or other companies. It does not include any adware or spyware, and it cannot be remotely monitored or shut down.
Note: You can only download crappy music with LimeWire. And you should support the artists you like.