Brann Timothy Dailor (born March 19, 1975 in Rochester, NY) is an American drummer/singer best known as a member of the Atlanta, Georgia metal band Mastodon, in which he is the drummer, backing vocalist, lead vocalist and primary lyricist. Dailor first started playing in a band called Evisceration from 1991 to 1993, when the band broke up. Dailor was also a founding member of mathcore band Lethargy, and the progressive dreamfunk band Gaylord and played with Today Is the Day.