Brian Rosenworcel is an American drummer and co-founder of the band Guster.

[2] Rosenworcel earned a Bachelor of Arts degree from Tufts in 1995.

[4] Rosenworcel has co-written several of the group's songs and, beginning with 2003's Keep it Together, contributed to their lyrics.

[5] Rosenworcel has maintained the band's active studio and tour journals since 1999.

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