AJR—the brother trio of Adam, Jack and Ryan Met—started out playing the streets of their New York City home in 2005 when Jack, the youngest, was only eight. Soon enough, the busking money was spent filling their family’s apartment with the instruments and recording equipment that would pave their way to a full-time music career. AJR’s first break came in 2012 when their single “I’m Ready” caught the eye of Sia, leading to a deal that spawned their 2015 major-label debut, Living Room. It proved that the multi-instrumentalists love big beats, harmonies, and choruses in the style of the Jonas siblings, Fun., and a bit of Broadway flair. They grew both bolder and more vulnerable on 2017’s The Click with “Weak,” a confessional shout-along about succumbing to temptation, the Rivers Cuomo-assisted “Sober Up,” and the triumphant “Burn the House Down,” which became an anthem for the gun violence movement March for Our Lives.