READ: 6 bizarre celebrity conspiracy theories: From Avril Lavigne's death to Beyoncé's Illuminati status While fans of the star might not have imagined her penchant for Hello Kitty, they'll be ...

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 ... to date for Sanrio – and even inspired a controversial song by Avril Lavigne. The annual retail sales tallied $5 billion last year.

Avril Lavigne may be old news in America, but she still fills stadiums in Japan. Last year, her self-titled album hit No. 2 on Japan's Billboard chart. Its lead single, "Hello Kitty," is about her ...