Besides the original songs that most fans look for, the instrumental versions also get a lot of hits, particularly because it has a lot of uses.

An instrumental song can be used in place of a popularized karaoke version. This comes in very handy for those people who join singing contests, since they can feel the song more if they use the original accompaniments that make the song alive. Some instrumentals actually have background voices that may aid the singer in the process.

DJs will also like instrumental songs since they will be able to mix a capellas with these, especially if they have some songs that they would like to mix for the club people to dance with. The editing of these songs or using samples in the accompaniment can also be done by the DJs.

Of course, there are some songs that are good as instrumentals as well. There are fans who can't get enough of the song that they have to hear the whole instrumental without having to use voice-removing softwares that usually do not remove the entire voice and instead leave traces of echoes and other noise that makes the whole instrumental a bit awkward to listen to.

Most instrumentals are available on fan sites. For instance, a fan of the Black Eyed Peas might have uploaded a particular instrumental exclusive for that fan site, so some registration process might be required. There are, however, DJ sites that provide the use of instrumentals without asking people to register or pay for anything.

All it takes is a single click and you're all good.