West Palm Beach-based promoting outfit On Fire Booking specializes in all-ages extravaganzas featuring the latest loud, fast, and heavy acts. Originally, its shows featured mostly young, local bands, but recent booking coups have included well-known national headliners like Polar Bear Club and Maylene and the Sons of Disaster. This Thursday's show at the Speakeasy Lounge in Lake Worth features a more up-and-coming national act, a Bullet for Pretty Boy. The Longview, Texas, quartet specializes in a lightning-speed, unrelentingly crushing style that marries death-metal blast beats to dual-attack, scream-sung vocals and, somewhere under all of that, ostensibly Christian themes. For its current "Revision: Revise Tour," the band comes accompanied by four other touring acts, including the Great Commission, a similar "heavy worship" act from Texas, and the Air I Breathe, a breakdown-addicted fivesome from New Jersey.