Rumi Koizumi, also known as #2 of the girl group Idoling!!!, has graduated from the group. The sudden announcement of her departure came during a concert on Sunday.

Koizumi has been absent from some of Idoling's performances since the end of last year, apparently due to health problems. On Sunday, she was once again missing, but she appeared on stage for the encore. But right before the encore, a message on the screen announced that this would be her final show. Koizumi explained that her health is the reason for her leaving. She finished the encore by performing four songs with the rest of the group.

Koizumi is reportedly continuing her entertainment career, though no specific plans have been revealed yet. Idoling!!! is now down to only 16 members.

Actress Kumi Hayase (57) has been divorced since May 2008, it was learned on Saturday. Hayase had been married to a businessman since 1980.

According to a source close to Hayase, the couple's married life had already come apart when Hayase's husband moved to the U.S. alone in 2001. After their daughter graduated from college, they decided to officially separate.

Hayase, who appeared in dramas such as "Ore wa Otoko da!," retired not long after she married, but she returned to show business in 2002.

Yuna Ito's next single, titled "trust you," has been chosen as the next ending theme of the "Mobile Suit Gundam 00" series. Although Ito has done music for many films, television shows, and commercials, this is her first tie-in with an anime.

"trust you" goes on sale March 4. The song will be used on the show starting on January 18.