Rocket from the Crypt is an American punk rock band from San Diego, California, originally active from 1990 to 2005, then active during 2011 and again from 2013 to the present.

Adam David "Atom" Willard is an American drummer who has been a member of several notable musical acts. His career began in 1990 when he joined Rocket from the Crypt, with whom he remained until 2000. Subsequently, he joined the Special Goodness, the Offspring, and in 2005 became a founding member of Angels & Airwaves. In 2007 Willard departed from the Offspring to focus on his work with Angels & Airwaves, and in April 2009 he also joined Social Distortion, but left the following March. In June 2011, he joined the band Danko Jones and in October 2011 amicably left Angels & Airwaves. From 2013 to 2020, he was the drummer for Against Me! until their indefinite hiatus. Currently he is playing in the bands Worriers, Plosivs, Lektron, and Alkaline Trio.