For a rapper to command your attention, it all comes down to the voice. In the late 1980s and early 1990s, Public Enemys Chuck D had millions of fans hanging on to every word of his booming baritone. In the mid-1990s, The Notorious B.I.G.s steely poise and vocal precision led many critics and fans to proclaim him the best rapper of all time. Now, in 2006, get ready for the next rapper with a magnetic voice, someone whose pristine raps demand attention. His name: Jay Rock.