When Green Day recorded their 1997 album Nimrod, they were coming off the historic one-two punch of Dookie and Insomniac, and they wanted to see where they could push their sound. That record varies wildly from song to song. There’s acoustic balladry, all-out mouth-foaming hardcore, and one spaghetti western instrumental. Buried deep on the second side, you’ll also find “Haushinka,” a song that adds some Who-style grand gestures to Green Day’s usual pop-punk attack. On Saturday, Green Day played that song live for the first time in 28 years.