Finding Song Lyrics on Google

Try to enter a line of the song which you already know (as a phrase, using quotes), plus the word “lyrics”.

Example: "wanna hold your hand" lyrics

You can also use a wildcard inside the phrase if you don’t know enough words to construct a meaningful phrase; this helps create a smaller result set.

Example: "hard * night" lyrics beatles
Source: http://blog.outer-court.com/archive/2005-11-03-n79.html