Note #1: Bruno Nguyen and Local 80 Brother Mike LaVere rig a double dolly gag with a ride-along key light (blonde with small chimera). 14 additional Source 4s were used to supplement. This was for the musical episode of Grey's Anatomy, 2011 (Photo by Keith Hascher) Note #2: The Dempsey Challenge - Member Cindy Lagerstrom and Grey's Anatomy's Patrick Dempsey take a break while riding in the Dempsey Challenge. Riders raise funds for cancer awareness.