Before Ozzy Osborne became a spokesman for a butter substitute and the star of the funniest Pepsi commercial ever made, he was the lead singer for perhaps the greatest heavy metal band of all time – Black Sabbath. These guys are probably older than your parents now, but they were the cutting edge of bad (in a good way) back in the 70's and 80's.

Dark lyrical themes combined with pounding guitar and percussion-heavy tracks made these guys the kings of the counter-culture, heavy metal movement. I mean, Ozzy bit the head off a freakin' live bat once on stage. You can't get much more metal than that. Is this bringing back memories of your youth? Do you feel the urge to relive the days of your rebellion for a moment?

Well, you won't have to dig that authentic sweat-stained Black Sabbath concert t-shirt out of the corner of your closet to bring back your memories. You can just kick back and listen to the Black Sabbath album, Paranoid, for free.

Yup, you read that right, Paranoid is currently free on Google Play Music. Featuring the songs War Pigs, Paranoid, and Iron Man, this is perhaps the best of the 19 albums the band produced. Get out your studded belts, faded jeans, and leather jackets boys and girls, it's time to rock and roll.

Oh yeah, and some dude named Chris Janson has a free album on Google Play Music as well. The album's called 'Buy Me a Boat' and I'll bet you can guess the genre from that title (hint: it's not rap). Y'all who don't dig rock might like this one instead.