If you’re a fan of rock or blues, you already know the name Eric Clapton. For those who don’t, he is one of the most prolific musicians from the Classic Rock era, not to mention one of the best guitarists of any era. His work has spanned several genres, but his blues output across each decade is some of the finest music you will ever have the joy of hearing. To get a fantastic sampling of what Clapton has to offer, you should check out his Unplugged record over at Amazon as a part of their monthly $5 MP3 Album Sale.

On this acoustic album, Clapton tears it up live over fourteen tracks that include hits from his then-three decade career, and the versions of “Tears in Heaven” and “Layla” became hits as big as their studio-recorded counterparts. Clapton’s love of older blues standards is on display in his amazing performances of “Before You Accuse Me,” “Malted Milk,” and “Hey Hey,” as well as a spirited rendition of Muddy Waters’ “Rollin’ and Tumblin'”.

Whether you’re a longtime lover of or new to Clapton’s work, Unplugged is a must-add to your collection. Pick it up soon, as this album and the rest of the $5 albums will only be this price until the end of July 2012! Browse all 100 albums on sale this month for only $5 each, as well as several albums on sale this week for only $2.99.

Butch Vig, best known as the producer of Nirvana‘s Nevermind album and drummer of the band Garbage, recently discussed that he reunited ex-Nirvana members Dave Grohl and Krist Novoselic for a track on an upcoming Foo Fighters album. The track is titled “I Should Have Known,” and will be featured on the next album from Grohl’s band.

The new song sees Novoselic contribute both bass guitar and accordion (!!) to the track. Recording for the as-of-yet untitled album was completed at the beginning of this year, and is being held for a release during April.

Grohl and Novoselic first worked together in the band Nirvana, led by frontman Kurt Cobain. Their breakthrough album was Nevermind, released in 1991, and produced by Butch Vig. The release of the album would usher in a new attitude, sound, and feel for the hard rock/metal and punk community that would eventually be labeled as the “Grunge” genre by the media. During their career, Nirvana released songs such as “About a Girl,” “Smells like Teen Spirit,” and “All Apologies.”