Let's make this birthday one to remember.

55 years old (Born on July 11, 1969)

Happy Birthday, John Kiffmeyer! From keeping the beat on Green Day's iconic "1,039/Smoothed Out Slappy Hours," you've proven that punk rock drummers never fade—they just keep rocking louder. Your rhythms set the stage for countless garage bands and inspired air-drumming sessions worldwide.

Though drumsticks may have changed hands since your early days with Green Day, your legacy remains timeless—much like Billie Joe Armstrong’s eyeliner. Here's hoping this birthday brings you as much joy as those legendary basement gigs once did. Keep rocking hard and aging gracefully; after all, punk legends don't get older—they just become classics!