Billie Joe Armstrong is best known as the singer and guitarist of Green Day, and his off-stage interview voice is almost as recognisable to fans as his singing. In spoken conversations he often peppers sentences with y'know, a filler that has become a small in-joke among listeners who watch his interviews. Clipped on its own, the phrase circulated as a short soundboard bite for fan edits and reaction posts, where its appeal is simply hearing a famous punk frontman sound completely casual and conversational for a second.