A good friend of mine Ranah Edelin is the CEO of a company called SingShot.
SingShot is an online talent platform centered on singing / karaoke. Basically, if you have a PC or Mac, a broadband connection, and a microphone, you can record your own version of popular songs (SingShot provides the music and the lyrics) that can then be saved on the site and listened to, rated, and commented on by the world. There are already thousands of great recordings on the site.
Time Magazine listed SingShot as one of the Top 50 Coolest Sites of 2006!
They are like the Youtube of Karaoke. You can grab codes from posts and stick them on your site like this. this is a funny recording I grabbed of some guy singing Beat It/Michael Jackson...