Subversive art-pop group TISM has announced its first national headline tour in 30 years, after having caused nearly $19,000 in damage to the Sydney Opera House.Known for anarchic live shows, TISM (short for This Is Serious Mum) trod the boards at the iconic Australian venue in mid-April for two performances celebrating the 30th anniversary of their breakout third album, Machiavelli and the Four Seasons.The album hit number eight on the ARIA album charts, won two ARIA Awards, and spawned subversive hit singles like Greg! The Stop Sign!! and (He'll Never Be An) Ol' Man River, which both appeared in the top 10 of triple j's Hottest 100 and achieved rotation on commercial radio.The Sydney Opera House performances were an absurd spectacle involving elaborate costumes, giant puppetry and crowd participation They followed up with releasing their seventh album, Death To Art, in 2024 and playing another run of east coast shows.Following 30th anniversary performances at the Sydney Opera House and Melbourne's PICA (Port Melbourne Industrial Centre for the Arts) earlier this month, TISM is taking their rebellious show on the road once again.Billed as "TSIM, the No Mistakes tour" (yes, the deliberate typo is another sly joke), it marks the group's first full-scale national tour in more than 30 years.The group will hit Adelaide in July, Darwin in August, then Brisbane, Canberra, Perth, and back-to-back dates in Melbourne and Sydney in October.A tongue-in-cheek statement, nodding to their recent fine, declares: "Because TSIM wants all your money, they will entice you to come to EVERY show on the tour by playing a RADICALLY DIFFERENT selection of fan favourites each night