With your television capability, I'm assuming the lyrics would display there if you are able and interested in implementing this app. This lyrics solution is much cooler than looking up lyrics in another application totally unrelated to your music player.
Lyrics will either post in their entirety or will 'float' onscreen in time with the music with only the applicable and next verse displaying.
The reportoire is claimed to be about 7 million songs including many classical vocal pieces. I'm enjoying Musixmatch, a floating lyrics provider, that provides lyrics via apps to Spotify (supports rdio, Rhapsody, Play Music, and deezer too).
