Green Day front-man Billie Joe Armstrong joined his son, Joey, for a special show last week in Oakland, California at 1-2-3-4 Records.  They played under the name "Two And A Half Men."

The Armstrongs were joined by Jason White, who has played guitar on tour with Green Day since 1999. 

The trio played several Green Day songs at the show, according to Restless Press.  The younger Armstrong plays in his own band, Emily's Army.

A few moments are captured on Joey's Instagram.


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