Jon Cleary & the Absolute Monster Gentlemen consist of Cleary on keyboard and vocals, Cornell C. Williams on bass and backup vocals, and A.J. Hall on drums. All of the band members, except for Cleary, were born in New Orleans. The Absolute Monster Gentlemen can swell to an 8-piece band, often including musicians like Nigel Hall on keyboards, Pedro Segundo on percussion, Xavier Lynn on guitar, and the Absolute Monster Horns