Amazon has released over 500 classic, greatest hits, and Billboard Top 50 mp3 albums for only $5.00 each.
They have tons of amazing artists across many different genres from all decades.
I see classics like The Moody Blues, U2, The Who, Styx, etc. They have singer-songwriters like Trevor Hall, Ingrid Michaelson, Jack Johnson & many others. And then they have more popular hit artists from today like Kings of Leon, Rihanna, Lady Gaga, Thirty Seconds to Mars, The Killers & more.
Be sure to scroll down and browse by genre.
Pricing was current when the post was published, however Amazon prices change often, so please check before you buy.