On any given weekday, around 5 p.m., you can expect to find a bit of a mob gathered around the corner of Queen and John. That’s when MuchMusic's Much on Demand airs live and excitable teens like to gather to catch a glimpse of a celebrity—any celebrity. And since it's March Break this week, you can expect double the crowds as guests like Christian rock band Relient K and High School Musical's Jordan Pruitt drop......