Trent Reznor is the only official member of the band. He assembles different musicians to assist him, like: Alessandro Cortini (keyboards), Jerome Dillon (drums), Aaron North (guitar), Jeordie White (bass, guitar), etc.
Nine Inch Nails is an American industrial rock band that was formed in Cleveland, Ohio, United States in 1988 by Trent Reznor, the only constant member of the band. He is generally credited for popularizing the genre known as “industrial rock”. Born Michael Trent Reznor, he was raised by his maternal grandparents in Mercer, Pennsylvania, USA. Reznor took up piano at the age of five and in high school took up the tuba and saxophone. During the early to mid 80s Trent played with various synthpop and new wave groups such as Exotic Birds and Option 30 before beginning his solo project.