Philly indie-pop duo-turned-trio Bridge Underwater just shared a new single called "I Don’t Know." (We’re feeling a combination of CRUISR/Cold Fronts vibes on this one.) It’s the lead track and opener to the band’s forthcoming EP Still Run, which was mixed by Uniform Recording’s Jeff Zeigler. The album officially drops on January 8, and Bridge Underwater will be celebrating its arrival on Saturday, January 12 at The Fire.