THURSDAY CONCERTS ON THE GREEN: Van Hutchins will perform from 5:30-7:30 tonight in the Concerts on the Green series at 6504 Main Street on Gloucester’s Historic Courthouse Circle. It is free and open to the public. FRIDAY WATCH PARTY: Canine Companions in Mathews will host a watch party for the organization’s National Graduation Ceremony at 12:30 p.m. Friday at the Helen and Murray Main facility, 17262 John Clayton Memorial Highway, Mathews. It is free of charge, but space is limited so RSVP online at canine.org/graduationparties. CAR SHOW: The Middle Peninsula Classic Cruisers will hold its Cruise-In at 5 p.m. Friday at the Main Street Center parking lot, Gloucester. The weekly Cruise-In events are held every Friday night through the end of October. MACKEREL MAYHEM: Captains’ registration for the Mathews Rotary Club’s Spanish Mackerel Mayhem tournament will be held from 5:30-7 p.m. Friday at Morningstar Marina, 249 Mill Point Road, Hudgins. The tournament will be held on Saturday, wi...