Musixmatch

Available on iOS, Android, WP7 desktop Mac, W8 and Spotify, musiXmatch is currently the world's largest and official Lyrics Catalogue with more than 15,000,000 users worldwide and is the primary destination on mobile and connected devices for Songs Lyrics. musiXmatch also provides developers an awesome Lyrics API, which lets them build their own lyrics services. musiXmatch has worldwide agreements with top Music Publishers, including Universal Publishing, EMI Publishing, Sony ATV, BMG, Warner Chappel, Kobalt Publishing, and thousands of indies through the Harry Fox Agency.