Sumo Cyco is a Canadian rock band from Hamilton, Ontario, consisting of lead vocalist Skye Sweetnam, guitarist Matt Drake, bassist Oscar Anesetti, and drummer Joey Muha.

Sumo Cyco launched in March 2011 and had their first show, opening for Hollywood Undead, in April of that year, performing to a crowd of a thousand.

[4][5][6] On March 31, 2017, it was announced via Twitter that Sumo Cyco would release their sophomore album, titled Opus Mar.

[citation needed] The record includes a guest appearance by Benji Webbe of Skindred, on the single "Move Mountains", released on February 1, 2017.

Sumo Cyco opened the main stage for the Offspring at the Sound of Music outdoor festival on June 10, 2017.