Four chords may not sound like a lot, but there's a world of possibilities that can come from them. Every song in this week's #TBT sale is based on just four chords: I, V, vi and IV (check out this article for a Roman numeral analysis crash course). Discover how a diverse group of artists, from Green Day to Celine Dion, put their own twist on this group of chords with ten standout songs - on sale for just $1.50 each!*

Pick up the whole collection of '12 Songs to Play with Only 4 Chords' and you'll also receive bestsellers "Home" by Phillip Phillips and "Wagon Wheel" by Darius Rucker — on sale today for only $18.99!*