 In 2007, Fowles played bass for AFI member Hunter Burgan's side project Hunter Revenge, who accompanied The Aquabats on their winter holiday tour that year.In 2013 he also played bass with Kepi Ghoulies band when they toured with The Aquabats on their holiday tour.In June 2015, Fowles and Aquabats drummer Richard Falomir played in former Ramones bassist C. J. Ramones band for an East Coast tour with Shonen Knife.