Conversation so far:
What happened in 2008 to Ai Kago?
Ai Kago made a well-publicized return to the entertainment industry in 2008
How did Ai Kago make a well-publicized return to the entertainment industry in 2008?
Ai Kago began appearing in multiple Hong Kong movies, including Kung Fu Chefs.
What did Ai Kago do to return to the public eye?
On August 25, 2008, Kago released a book entitled Kago Ai Live—Miseinen Hakusho.
Did Ai Kago have much publicity in 2009 or 2010?
On June 24, 2009, Ai Kago released her first solo single No HesitAtIon on independent record label In Da Groove.
What was the name of the album Ai Kago's solo single, No HesitAtIon was on?
Did Kago's first jazz album, Ai Kago meets Jazz: The First Door sell well?
Did Ai Kago go on tour during her return to entertainment in 2008–2010?
In August 2010 Ai Kago was invited to perform at music festival Summer Sonic.

Question: Are there any other interesting aspects about this article?
Self-contained rewrite: Are there any other interesting aspects about Ai Kago's return to entertainment in 2008–2010 besides being invited to perform at music festival Summer Sonic?