KaraokeTube includes hits by major artists such as ABBA, Adele, Green Day, The Beatles etc with new tracks being constantly being added by the developer although there are also many classic hits missing from the catalog. Karaoke Tube has a modern OS X style interface with the song library at the bottom, the lyrics in the main window and player controls on the left: With an impressive free library of 12,000 songs, there’s definitely something for everyone. You can be up and singing karaoke in literally minutes with KaraokeTube and its easy enough for anyone to use.