Lotta Lindgren, better known as Léon, has been very busy lately. She’s just played her first London gig, at the Courtyard Theatre; before that, she has been travelling around mainland Europe - Berlin, Paris, and hometown Stockholm, performing to new fans.

“I’d never been to London before,” she tells Music Week. “I’m seeing places and meeting new people, which is very fun. I felt pretty nervous in Berlin; I don’t know why. I’m really excited to see what kind of ...