Sony Music Entertainment and eMusic announced that songs from Sony's back catalog would be available later this year through the online music store.

Financial details of the agreement were not disclosed.

Sony Music labels include Arista, Columbia, Epic, Jive, LaFace, Legacy Recordings and RCA and the artists whose songs will be available for purchase through New York-based eMusic include Billy Joel, Bruce Springsteen, The Clash, Jeff Buckley, Johnny Cash, Leonard Cohen and OutKast.

EMusic, launched in 1998, allows subscribers to download a certain number of music tracks a month for a set fee.

Its basic service allows subscribers to download 24 songs a month for 11.99 dollars, less than the price charged per song by Apple's iTunes.

EMusic claims on its website to have a catalog of more than five million music tracks.