Storm Large is absolutely gorgeous, what with her mile-long legs, blonde locks and cherubic face. But I think she expects us to be shocked with all her talk about fisting. The American rock chick will learn that Fringe audiences have a high capacity for smut and they’ll need it to cope with the sexual frankness in Storm Large’s musical memoir. After a difficult childhood and a period of drug-use, Large turned to music, fronting various bands and releasing several albums until TV reality show Rock Star: Supernova and a spell in Cabaret opened up her acting choices.

Crazy Enough runs like an Off-Broadway musical. The generous number of songs are culled from recent albums with some covers thrown in, rock-flavoured and melodic with cleanly delivered filthy lyrics. She’s in her element when rocking the stage, with a soulful, versatile voice and a hard-as-nails persona. She hits the comedy notes too, joining the dots between songs with potty-mouthed tales of tragedy and misadventure countered with a fierce vindication of her life.

It’s a polished affair as Large rarely deviates from the script. With a full band and amps cranked high, the concert vibe and slick production negate the possibility of an intimate confessional. It seems strange to criticise a show for being too professional, but thankfully the entertainment doesn’t suffer; on the night of the review the audience enjoyed it enough to bestow a standing ovation. Large advocates a ‘fuck ‘em all’ attitude but after climaxing the show with a barnstorming number she dedicates a lullaby to her late mother. A beautiful song, it wraps up the narrative nicely but plays into the conventions Large has just denounced. It seems the shock rocker doesn’t want to offend after all.

Underbelly, 08445 458 252, until 29 Aug (not 16, 24), 10.25pm, £10.50–£12.50 (£6.50–£11).