"How many vintage Green Day fans are out there tonight?" asked singer-guitarist Billie Joe Armstrong last night at the Fox Theater in Pomona, California, midway through the opening show of the band's U.S tour – the band's return from Armstrong's recent rehab. As if to get a closer look, he asked, "Who wants to join us onstage? Come on, let's go!"
The two-hour concert in the 2,000-capacity theater just outside Los Angeles was the first of four intimate warm-up shows (including a stop at SXSW) before heading out to arenas later this month.