A new J-pop girl band is capitalising on the cryptocurrency craze by singing about the digital currency market while wearing metallic wrestling-style masks and French maid dresses.

Each girl in the eight-strong group, who go by the name of Virtual Currency Girls – or Kasotsuka Shojo in Japanese – wears a furry mask to represent a different currency, such as Bitcoin, Ethereum and Ripple.

The band held their first concert in Tokyo earlier this month, where they sang their debut song The Moon, Cryptocurrencies and Me. Lyrics include: "Be careful about your password! Don't use the same one!", to warn against the dangers of trading cryptocurrency, and “Don’t underestimate the market!”