As promised, Chris Brown dropped a few new tracks on his free mixtape, 'X Files.' The singer released the six-song project on his website, Mechanical Dummy, early this morning.

'X Files' features rappers like Ludacris, Busta Rhymes and Kid Ink on the bonus cut 'Main Chick.' Ink recently collaborated with Brown for his new 'Show Me' video.

When the entertainer, who left rehab last week, first announced the mixtape, he promised five songs. Fans will be pleased to know an extra track appears on the tape.

'X,' which Brown has revealed is his final album, has been silently pushed to a 2014 release date -- the project was originally set to debut on Dec. 3. Timbaland, Kendrick Lamar and Pharrell are some of the bigger names expected to have credits on the LP.

 

Listen to Chris Brown's 'X Files' Mixtape