Jewish Reggae artist Matisyahu is most famous for the super-positive simple rappish anthems, "King Without a Crown" and "One Day," while his latest album Akeda is more pop-informed although it's got a bit of reggae and gangsta rap in there too. The indie-sounding "Surrender" is a single that will stick in your head, but I found "Vow of Silence" to be the most interesting confluence of gangster rap and old testament fathers.
