Performance Rockin’ The Fillmore, with all its pumped up, sonically dirty cannon fire of rock and roll by the classic powerhouse quartet Humble Pie, is now available on MP3 format from Amazon this month for only $5.00.

Led by the soulfully aggressive and pained gritty vocals of the late Steve Marriott (who remains one of the great unsung rock and roll singers in music history), and complimented by the razor sharp guitar notes and riffs from Peter Frampton (who later went on to his own dizzying superstardom), Humble Pie took what Led Zeppelin did, mixed it with some of the sounds of Marriott’s former group The Small Faces, and presented it hot off the blues/rock presses. Each studio album released by the band was met with more and more success, here stateside and overseas in their homeland of Britain.

The Low Spark of High Heeled Boys, by the classic rock ensemble Traffic, led by the prolific Steve Winwood, is now available on MP3 format from Amazon this month for only $5.00.

By 1971, Traffic had already experienced major success with the prior release from 1970, “John Barleycorn Must Die” and Winwood was already pretty much a veteran of the late 1960s British classic rock boom and found big success with this album as well.

I Told You I Was Freaky, the second album from New Zealand comedy/folk/… group Flight of the Conchords, nearly defies categorization, but it’s worth a listen for it’s all-over-the-place sound and smirk inducing lyrics from Oscar winner Bret McKenzie and Jermaine Clement.

You can buy I Told You I Was Freaky for just $5 as one of the 100 notable albums on sale as a part of Amazon’s $5 MP3 Album Deal that runs through the end of April.

A stylistic left turn away from the more pop-friendly tracks of The Bends and Pablo Honey, Radiohead‘s OK Computer may not be the best of the band’s albums, but it may well be their most important. The album can be had right now on Amazon for just $5 as one of the 100 notable albums on sale during their $5 MP3 Album Deals for the month of April 2012.

Widely acclaimed and sonically diverse (though not as diverse or experimental as later works), OK Computer offers stand-out singles like the slow building “Lucky” and “Karma Police,” as well as several other expressive tracks that impress on first listen but make their full impact felt over time.

As part of Amazon’s monthly $5 MP3 album deal for March 2012, The Human League‘s Essential is on sale for only $5.

If you’d like a physical copy of Essential, the CD version is available for $15.08.

Bop around memory lane with this 15-track best-of compilation from one of the forerunners of British New Wave electronica. The Human League dominated the charts in the 1980s with such hits as “Don’t You Want Me, Baby,” “Human,” and “(Keep Feeling) Fascination” and have been sampled by such varying artists as George Michael and KMFDM, and notable dance music samplers, Utah Saints and Ministry of Sound.

Browse the main sale page to see the other 99 albums on sale for only $5 each in MP3 format through the end of March 2012.