As the release date for Notorious, a biopic about the Notorious B.I.G., nears, some unreleased songs from the late rapper's demo tapes have started circulating on the internet.

Last month one of the film's producers said he had surprises for the Biggie biopic soundtrack.

"We kept everything as is, in its raw form," Wayne Barrow told the Hollywood Insider. "This is what got him the deal, plain and simple. His fans have been asking for it for years."

Though the soundtrack won't officially hit stores until January 13th hip-hop blogs have already begun posting the demos.

Here are two cuts from Biggie's original Demo Tape that appear on the Notorious Soundtrack: The Notorious B.I.G. - "Microphone Murderer" [and] The Notorious B.I.G. - "Guaranteed Raw".

NOTORIOUS: Music From and Inspired by the Original Motion Picture promises a mix of notable artists and classics.

The musical companion to the hugely anticipated Fox Searchlight motion picture event features timeless Notorious B.I.G. classics like "Juicy" and "Hypnotize" alongside never-before-released demos and new tracks by some of hip-hop's biggest stars, including Jay-Z and Jadakiss. The album arrives in stores and online on January 13th. (Atlantic Records Press Release