Thousands of Knicks fans take over streets outside MSG to celebrate Game 6 blowout win against Celtics in wild scene

It was a Garden party … outside the Garden.

Thousands of frenzied Knicks fans took over Seventh Avenue Friday night to celebrate the team’s dominating win over the Boston Celtics in Game 6 of the Eastern Conference Semifinals — with some climbing poles and one burning a rival jacket outside Madison Square Garden.

Knicks faithful roared as a sea of blue and orange poured out into the streets outside MSG, exulting the shocking series upset that culminated with a blow-out victory over the defending champions.