Firefly Music Festival: High school student from West Chester, Pa. jams on stage with Green Day

The presentation came after Green Day forward Billy Joe Armstrong saw a label that had been hung up by the youngster’s companions.

A secondary school understudy from West Chester, Pennsylvania, made his presentation throughout the end of the week with, as a matter of fact, Green Day.

Zach Marsden made that big appearance Saturday night at the Firefly Live performance in Dover, Delaware.

Zack and a couple of companions were close to the first line, holding a sign that read, “Zack can play guitar.”

Green Day frontman Billy Joe Armstrong saw the standard and welcomed Zack onto the stage.

The valedictorian at Henderson Secondary School says he’s self-educated on the six harmonies.