Decide what song you want to research. You will need to have the official name of the song before you start your search.
Figure out what person or band sings the song you are going to research. Not all searches require this, but some songs are titled the same and you may need this information to distinguish one song from another.
Research the song title you want to find the hidden lyrics to. The best way to perform this search is on the Internet. It is a good idea to start with the band or singer's website to see if there is any mention of hidden lyrics. The website may even have these lyrics listed on the page.
View different websites specializing in hidden lyrics. There are many websites like this. Some of these sites include Lyric Soft, Lyrics Download, Lyrics 007, and Seek Lyrics. These site specialize in hidden lyrics so you should be able to find out if there are hidden lyrics in your favorite song at one of these.