Songs in My Head

I get the weirdest songs in my head at times, but the funny thing is sometimes I'll only have one or two words that I can remember, and so I google those one or two words with "lyrics" and a bunch of different songs come up. So I resort to singing the tune to my friends until someone finally figures it out. Of course there's an iPhone app that you can sing a tune into and it will do its best to match it to the right song, but I don't have an iPhone - I got the cheapest phone so that I could justify buying a PSP :)