Ukeaoke (and Guitaraoke) has everything Karaoke has (Lyrics and Background Music) with the added feature of the chords embedded in the lyrics. Singalong Classics has the lyrics and background only.

Here is the Intro to the classic song: You are my Sunshine and below shows how the chords are embedded in the lyrics of the song. See a sample Ukeaoke File > HERE.

Chords in Lyrics (see sample)