It was announced through the video "You are filled with announcementation.".
The album doesn't actually have anything Undertale-related. Instead, it contains copies of Kara's Flowers albums: the MP3 version is Stagg Street Recordings, and the FLAC version is We Like Digging? (also in MP3, but with three extra copies of each song to make the download larger).
- The MEGA download isn't available anymore.