Composer of K-ON!! Song In Episode 20 Passes Away

According to the official blog, singer & song writer bice (Kijima Yuko) passed away due to myocardial infarction on July 26th. She was 38 years old. She wrote songs of Kirarin Revolution (ep 1 - 102) and "Gohan wa Okazu" played in K-ON!! episode 20.

Sources: bice's blog, Sports Hochi