Requires iOS 4.0 or higher
With LockLyrics you can have your song's lyrics right in your LockScreen. You just have to double tap the Home button to show the lyrics. LockLyrics takes the song's lyrics from iPod.app's library. If iPod.app doesn't have any lyrics, LockLyrics will search it on the web automatically. See the Screenshots below for a preview.
AppStore apps support
(Like: Spotify, Pandora, etc..);
All the code was rewritten.