BY JONATHAN VALANIA FOR THE INQUIRER When it comes to popular music, Danger Mouse (also known as Brian Burton) has been the Zelig at the dawn of the 21st century, an everywhere man with an uncanny knack for being at ground zero of the decade’s important pop moments. The Grey Album, where the Beatles’ White Album peanut butter got mixed up with Jay-Z’s Black Album chocolate? Check. The Gorillaz’s sophomore slump-defying second album, Demon Days? Check. Gnarls Barkley’s breakout global hit “Crazy”? Check. Danger Mouse’s latest zeitgeist moment is Broken Bells, a collection of shimmering analog-era pop produced in collaboration with the Shins’ James Mercer. Sunday night, the Broken Bells played the Electric Factory, and while the show may have been short on surprises – they played their recently released self-titled debut from beginning to end, along with a few choice covers – it was long on the endorphin-triggering pleasures that finely wrought indie pop can deliver. MORE