Amazon has 100 MP3 albums for just $5 each! This includes everyone from Gwen Stefani to Aretha Franklin to Elton John, Duran Duran, New Kids on the Block and Lady Antebellum. No matter what your music tastes are, I'm sure you will find a few favorites here!
If you don't typically use Amazon for music downloads, it's super easy! It will even automatically transfer them to your iTunes library for you.