Featured in ‘Midlife Chrysalis’ Jasper McVain’s Revv Me Up. Jasper McVain is a musical side-project created by Doc Hammer, writer and actor Terrence Fleming, and Max Vanderwolf, singer of the band Last Man Standing. Two Jasper McVain songs have appeared in the The Venture Bros. The first, entitled “Revv Me Up,” appeared in the episode Mid-Life Chrysalis, and is also known as Brock’s Workout Song. The second, “Mitre Storm,” appeared in the episode I Know Why the Caged Bird Kills.