Legal music linking?

So if I wanted to have music playing in the background of my company’s website, is there any services or websites out there that allow for either linking to them, or playing music through them? I found a couple of free sound sites, but they say they are free for non-commericial use.

Im not really interested in “royalty free loops” that just play the same 20 second beat over and over. Id like either actual songs by either popular or unknown artists. Ideally, I wish pandora would let me put a “music player provided my pandora” music player on my site and let that stream from them, but I doubt that will happen.

Any idea?