From the blaring organ loops of JAY Z's “Public Service Announcement” to the playfully pitched-up vocal samples of Cam'ron's “Oh Boy,” Just Blaze brought the boom bap of ‘90s rap into the 21st century with verve and volume. Whether launching Freeway and Joe Budden into the mainstream or notching crossover hits for T.I. and Eminem, Just Blaze's propulsive percussion never lets up.