The complexity of “kawaii” may help explain Hello Kitty’s enduring appeal across generations and cultures, why Canadian singer-songwriter Avril Lavigne released a song titled “Hello Kitty ...

Hello Kitty marked her 50th birthday Friday ... $80 billion to date for Sanrio – and even inspired a controversial song by Avril Lavigne. The annual retail sales tallied $5 billion last year.

The complexity of “kawaii” may help explain Hello Kitty's enduring appeal across generations and cultures, why Canadian singer-songwriter Avril Lavigne released a song titled “Hello Kitty ...