“If you want something done right, do it yourself.” Perhaps the saying ran through the minds of Damon Albarn and Jamie Hewlett in their shared London flat back in the ’90s. Blur frontman Albarn and Hewlett, the Tank Girl comic illustrator, had become bored with the era’s celebrity artifice, and sought to double down with a group — half art, half music — the industry had yet to witness. In came Gorillaz, the world’s first virtual band.25 years later, the Gorillaz universe keeps getting richer. On the occasion of their now ninth studio album, The Mountain, an immersive exhibition dedicated to…