Karafun is a free karaoke software for windows. It is both a full featured karaoke player and an editor!
Fun and exciting, it plays nearly every available karaoke file: Its editor enables you to create, quickly and easily, your own karaoke songs from Audio and MIDI music files. All of this, with a very user-friendly interface,
Everyone can use Karafun. Whether you're a Karaoke-Jockey, an amateur-singer or a complete beginner, Karafun can suit your needs thanks to its very flexible and easy to use interface.

Its many features makes it one of the easiest and most comprehensive available player on the Internet. And the best part: it's free!