Mark Thomas Griffin, better known as MC 900 FT JESUS, is an American rapper based in Dallas, Texas. A classically trained musician and trumpeter, Griffin is known for mixing hip hop and jazz. Griffin's work has often been seen as way ahead of it's time with socially responsible lyrics tinged with quirky biting humor. Griffin's use of rap, electro and cool jazz (he often plays like Miles Davis) is perhaps why his title "Falling Elevators" was chosen to illustrate an ad for the 501 Levi's brand which achieved great success.