Well, I see *hear* Lots of covers or original recordings on here with drums in the background. They dont sound exactly like real drums though. Is there a software that does this or what.

Sorry im completely lost on this matter and I was just wondering, since it would be cool to have this in my recordings.
yeah, you can use something like a beat sequencer to make drums and stuff. try reading some of the stuff in the riffs and recordings forum, that should help you find what you want/need.