Today, we will be premiering another promo video for '77 Montreal. This time we have Canadian hardcore/thrash band from Sudden Impact sending us a shout. Each week for the next few weeks we will premiere a video of one of the band's playing the festival. So don’t miss Sudden Impact at ’77 MONTREAL on Friday, July 26th, at Parc Jean-Drapeau in Montreal! Festival passes are on sale now, you can click here to pick up your pass now.