@i.O.Underground

Pop/indie Rock band based in Boulder, Colorado. "Once in a Lifetime" is out now!

Stream "The Underside" EP

Local Listen — i.O. Underground Made Sounds For Bigger Stages - 303 Magazine

Boulder Trio i.O. Underground Experiments With Modern Sounds

Watch 'Once in a Lifetime' On YouTube

AntiMusic - Singled Out: i.O. Underground's Wall

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