I must admit I never saw this coming but as soon as I heard about them I instantly loved them. Fabulous internet musicians who are actually making money. It can be done but the buzz word is "monetise" it. Pomplamoose have got it right but should be releasing their covers as singles bundled with their originals and therefore take advantage of their popularity but great start. They link straight to iTunes as well. Watch out for my thoughts for the day on this. MrFuturistic.