Robert Nathaniel Corey Bryar was the former drummer of the band My Chemical Romance from 2004 to 2010. He is best known as the drummer throughout the Three Cheers for Sweet Revenge and The Black Parade eras, and helped record the scrapped album later released as singles called Conventional Weapons. Known as Bob, he was born on December 31, 1979, in Chicago Illinois, and pursued a career as an audio engineer after his departure from the band.