Ratdog, also known as Bob Weir & Ratdog, is an American rock band. The group began as a side project for Grateful Dead rhythm guitarist Bob Weir and bassist Rob Wasserman that toured for seven years under names such as Weir/Wasserman and Scaring the Children. After adding Jay Lane on drums and Matthew Kelly on guitar and harmonica, they played their first show as a full band on April 22, 1995. They were originally billed as Friends of Montezuma and then as Ratdog Revue.