Singer: Green Day In order to make more time for Usher and Rihanna, the length of Green Day’s performance at a certain music festival was shortened, and the lead singer Billie Joe Armstrong was very unhappy, yelled at the organizers and smashed his guitar, claiming: I am not some Justin Bieber. Punk bands should have such bad tempers. Relatively speaking, they are considered well-behaved under the mainstream business system. If it were really in the era of garage rock, they might not even bother to share the stage with these singers. The guitar sound wall of "iDOS!" is piled with retro plucked strings. From "Stray Heart" to "Lady Cobra", it feels like you are distracted. People often say that nostalgia is caused by dissatisfaction. Green Day has been criticized for being too popular, but seeing young people like Justin Bieber being popular and popular, it doesn't matter if you are experienced, profound or domineering.