A big "happy birthday" to Curtis "50 Cent" Jackson, who turned 37 years old today (Friday, July 6). Since he already has everything you could imagine, he's the one giving us the gift -- free music! 

His newest album, titled 5, Murder by Numbers, is available now for a free download. It holds 10 tracks, with a few features from Hayes and Schoolboy Q.

50 Cent has had quite the credible career, starting back in 2002, and he is still going strong. 50 also mentioned that his official Interscope studio album will be released soon and titled Street King Immortal.