If you've ever hummed song without knowing all the words, MyLyrics is an app that lets you know what's been stuck in your head all day. Just enter a few of the lyrics and off you go. [iTunes]
Look people, it's very simple. Just sit down for a second. See you go to google and you type the word "lyrics" and then you just throw the tiny amount of words you think you know are in the song into the search engine with it. Then google will politely explain to you how wrong you were and tell you what song it was.
You just don't need an app for that. [lmgtfy.com]