Curtis Allen (aka "Voice") is a Sovereign Grace pastor serving at Solid Rock Church in Maryland. He is also a rapper, with excellent lyrics coming out of a Reformed worldview. I interviewed him here a few years ago.He's just released a new digital-only album, called "A Theist" (available from Amazon.com, iTunes, and elsewhere). At Amazon it's only $8.99 (it's a dollar more at iTunes).
He recently did a bunch of talks to high schoolers (at 18 different schools) in post-Katrina New Orleans, one of the most dangerous cities in the US. It seems like the Lord granted him a lot of favor. He put a few pictures together on a YouTube video, where you can hear the song "Cultural Jesus" in the background, one of the songs off of the new album.