Hexes & Ohs is a Canadian electronic indie pop group from Montreal. Their sound combines 1980s inspired beats and synthesizer sounds with indie pop structures and melodies. They have released three albums since 2005 and have opened for many artists such as Tokyo Police Club, Sloan, and Mates of State. The two members of Hexes and Ohs consist of Edmund Lam and Heidi Donnelly, who were high-school sweethearts with a passion to experiment musically and have together created a unique sound.