Red Letter is a heavy-hitting alt-rock band with influences like Foo Fighters, Red Hot Chili Peppers, MGMT and Velvet Revolver—and they’re all only 14 to 16 years old. Singer Livvie Brookshire, guitarist Britt Spurka and guitarist Daniel Bowman met through a program at a local music store and later branched out, adding Alex Blumenfeld on drums and Adam Davault on bass to round out their sound.