It's not easy to sell albums in the very competitive music industry. See our list of the 25 best-selling albums of all time, including "Thriller" and "Back in Black."
WHAT'S INSIDE: MUSIC
- Musicians & Bands
- Music Industry
- Musical Instruments
- Music Genres
Have you noticed in recent years that a lot of pop stars sometimes sound like singing robots? You've probably heard of the pitch-correcting software called Auto-Tune -- and its effect on modern music.
There aren't too many inventions that have had as much cultural impact as the electric guitar. Its distinctive sound winds its way through most popular music from the past 50 years -- the electric guitar IS rock and roll.