Builders' Boulevard

I know this is "elementary" but I don't know how to do it.   

If I "goolge" a song and find it ... then what/how?  A simple outline, step-by-step, easy-to-follow format would work best for me...if you know what I mean. 

I'm going to post this on TS3 too so I hope I get a LOT of replies!  Most commercial songs are used for/in TS2 & TS3 videos but I want to use them in frame-by-frame stories and I think I can do it effectively.  I just don't know how to get the songs into the game for "Create A Story." 

Can you help me?  Please?

  Cameo