Berlin's gloriously dysfunctional sibling rock duo Otto & Astrid have spent more than two decades delighting audiences across the globe with their unique blend of razor-sharp musical comedy, rock anthems and spectacular sibling rivalry. Ahead of bringing their award-winning show The Stages Tour to the Edinburgh Fringe, I caught up with Otto to chat about touring together, accidental TikTok fame, Taylor Swift, backstage chaos, their fiercely loyal fanbase, and why being relate