articleThe Brief Boston garage rock icon Jeff "Monoman" Conolly, frontman of The Lyres and DMZ, died at age 69 following a battle with bladder cancer, according to reports. Conolly was a pioneering force in the garage rock revival, founding The Lyres in 1979. Jeff "Monoman" Conolly, the iconic Boston musician best known as the frontman of pioneering garage rock bands The Lyres and DMZ, has died. Jeff Conolly dies at 69Big picture view:The singer died following a battle with bladder cancer, according to multiple reports. The Cleveland Clinic adds that bladder cancer starts in the lining of a person’s bladder and can spread if it isn’t treated.