Gas Leak is a popular, hazard team-themed band that shows up in random places for surprise concerts. In Through the Looking Glass, Hayley and Etienne were mistaken for Gas Leak while trying to cover up a portal to the Monster World. Etienne ultimately played to the Gas Leak fans with a keytar, and the real Gas Leak band received overwhelmingly positive fan reaction for Etienne's fake Gas Leak concert.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.