ITunes Music Store will now offer hip-hop mixtapes for download.

The first mixtape Street Official Mixtape, Vol. 1 became available on November 2, and is the first of its kind—free, downloadable and completely legal.

According to the iTunes Music Store site, all mixtapes will be “filled with the most authentic hip-hop material—new releases, exclusives, test presses, underground, hip-hop classics and a few surprises.”

Hosted by DJ "Winta" aka "Big Young," Street Official Mixtape will be released monthly,  and feature assorted hip-hop artists. Vol. 1 includes songs from KRS-One, Rascoe Will.i.Am, Masta Ace, Planet Asia and Encore, and will be accessible for download from iTunes Music Store for the next 30 days until Vol. 2 arrives.