OMFG
I found out how to do it, or I have to thank Chris for this. If you want to upload a song of your choice not found on Myspace, do this. Set up an account at Angelfire.com. It's free, duh otherwise I wouldn't do it. Then you upload your song of choice. You go to the main page of where your homepage is and if you wait a while the song you uploaded will start to play, and a filename will show in the header of the internet. So you copy that into something like this
<embed src="http://www.angelfire.com/droid/kevin_1/10_Isaac.mp3" autostart=true hidden=false>
You put <embed src="(FileNameHere)" autostart=true hidden=false>
OMG, I'm so happy, check out my Myspace now, I have Isaac now. I might even upload other songs now but in the future I will.
Hope this helps you out guys. I know, this is one step to making your Myspace cooler, but one thing......
The player is hidden so if people don't want to hear it, they can't stop it. Maybe just a hunch, if you took out truehidden in that file name above (the one you put into your blog) it might make it show. Not sure though. Try it out.

Okay I've had my fun tonight. I knew I would figure out this sometime or later. But most of it's Chris's (Smartah's) help. Thank you!