Don't you just love it when people turn a prank around and end up coming out better off? That's just what happened to this couple who got surprised by Jay Leno's 'Pumpcast News' and ended up doing some karaoke on the spot for a free tank of petrol. Turns out, they're pretty deadly. Will and Monifa Sims, we salute you. You are officially our favourite people of the week.
