Paul McCartney started off his forthcoming 80th birthday celebration in evident rockstar design.

On the last North American leg of his "Got Back" visit held at MetLife Stadium in East Rutherford,

NJ, McCartney invited some unexpected visitors to perform with him, making the group go totally wild.

The Beatles' part had long-term buddies Bruce Springsteen and Jon Bon Jovi 

An audience for an electric and celebratory evening of exemplary music.

"Seeing Paul and Bruce together is out and out mystical," concert attendee Brian Marschhauser, 34, told The Post.

"A neighborhood kid will go along with us," McCartney prodded the group.

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