There are at least three artists with this name.

1. Jacob Paulson (born 15 January 1997), known professionally as JK-47, is an Indigenous Australian rapper, musician, and activist from Tweed Heads South, New South Wales. Paulson is a Minjungbal/Gudjinburra man of the Bundjalung community.

2. JK-47 is an up and coming rapper and producer out of Stockton, CA. Combining his love for video games, anime, hip-hop and the inability to perform kickflips, he brings his listeners a piping hot, freshly cooked universally dope sound which he says is most greatly influenced by Ghettosocks, Rhymefest and Ultraklystron.
You can check out JK-47's official myspace at www.myspace.com/jk47andpals.

3. JK-47 is a producer and DJ out of Lexington, KY. Combining his love for techno and hip-hop he brings his listeners a fresh sound which he says is most greatly influenced by The Art Of Noise and Kraftwerk as well as DJ Qbert, Beat Junkies, DJ Rectangle, DJ Revolution, and DJ A-Trak.
His techno albums are done under the name 'Technoize', such as the album Syn.
You can check out JK-47's website at www.myspace.com/jk47beatz Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.