Brian Rosenworcel is an American drummer and co-founder of the band Guster. Along with guitarist/singers Ryan Miller and Adam Gardner, Rosenworcel formed the band while studying at Tufts University in the early 1990s. He is from West Hartford, Connecticut and currently resides in Brooklyn, New York. For many years, Rosenworcel exclusively played hand drums in the band, before expanding his setup to include a more traditional drum kit. Rosenworcel has co-written several of the group's songs and, beginning with 2003's Keep it Together, contributed to their lyrics.