Another fine product from AlphaOmega Shovelware!
I can think of no fewer than three products that provide similar or identical functionality (SizzlingKeys, iScrobbler, and Synergy Classic) and two of those are free. (As a user of iScrobbler *and* Synergy Classic, I have too many freakin' menus as it is.)
Granted, this one will pop open a Google search for the song lyrics, but that's not saying much.
Compare the screenshot on this page: http://www.yellowmug.com/sk4it/
with the one provided below. Which piece of software seems to have more thought and time and work put into it? And which one is free? Curious, that.