AmazonMP3, the online retailer's digital audio site, is slashing the price of over 100 tracks to just 29p.
The individual MP3s, which on average usually cost 59p, include tracks by Lady GaGa and Kings of Leon as well as Fleetwood Mac and Glen Miller.
AmazonMP3 finally hit the UK in December, after being first launched in the US in 2007. Initially it offered over three million Digital Rights Management (DRM)-free songs, with the tracks encoded at 256kbps. However Amazon said the store now boasts in the region of five million tracks.
"Since our launch just four months ago, we have been presenting our customers with some great deals on MP3s whilst rapidly expanding our catalogue and we will continue to do so going forward," said Julian Monaghan, head music buyer at Amazon.co.uk.
The price cut comes just a day before Apple implements variable pricing in its iTunes store, which will see the current chart hits increase to 99p from the 79p standard rate.
See also: Amazon kills third-party Kindle eBook