As our members were preparing to view the spectacular fireworks at the Cranberry Community Days, Station 21 was alerted for a vehicle fire on I-79 at the 80 MM northbound. While units were enroute, Butler Control advised there were multiple calls with additional reports stating it was a motorcycle on fire. Upon arrival, units found a fully involved motorcycle on the side of the road. Crews stretched one handline and extinguished the fire as the fireworks display began off to our west. Thank you to the bystander for taking a video and submitting to us. Crews returned to station as the grand finale wrapped up.