Developer website: Anony Mouse
pearLyrics... Ever wanted to dive into the world of those incredibly beautiful lyrics of the song currently playing in iTunes? pearLyrics gives you just that. It looks up song lyrics on the Web as you play songs in iTunes. Sure enough, you can also search for lyrics without playing the song, just enter artist and song title manually. pearLyrics then consults up to ten different servers to do its best and find the lyrics you are looking for. And best of all, you can also tell it to populate the lyrics inside your iTunes Library. Heck, it can even find guitar chords at times. With the standalone app you can also pre-fetch lyrics for whole iTunes playlists so you have them ready when you need them. Sure, it might not find everything, but it does find a lot.
pearLyrics is available as a standalone application for those still preferring Panther as well as a Dashboard widget for Tiger (combined download).