What you get from Amazon from this link is a 2-CD set, one CD being a Junie B. Jones audiobook, and the other being the studio cast album we recorded. The latter will soon be available on iTunes, Apple Music, Spotify, etc.
One correction from the credits: In the song "Lucille, Camille, Chenille", I am Chenille and the wonderful Chris De'Sean Lee is Camille, not vice versa. Let's set the record straight! (Or in this case, the CD.)