Michael Coletti, otherwise known as Steven Adler, is an American musician. He is best known as the former drummer of the American hard rock band Guns N' Roses, whom he had been a member from 1985 to 1990 in which he was fired from the band. He was later inducted into the Rock and Roll Hall of Fame in 2012 as a member of Guns N' Roses. Aside from his work in GNR, he is also known as the drummer for the band Adler’s Appetite.