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

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