Japanese singer Kyary Pamyu Pamyu talks instant stardom

Japanese singer Kyary Pamyu Pamyu has been talking about her sudden rise to fame.

In just a few years, she transformed from normal schoolgirl Kiriko Takemura to being the face and voice of Japan's kawaii - or cute - culture.

Now the 20-year-old is taking off in mainstream music culture too, as Mariko Oi reports.