Yuko Ogura

Yuko Ogura (小倉 優子, Ogura Yūko^?, born November 1, 1983 in Mobara, Chiba) is a Japanese gravure idol and model who typically aimed for the cute, innocent schoolgirl look prior to her 2011 marriage.
Ogura regularly, if not entirely seriously, claims to be one "Princess Apple-Momoka" (りんごももか姫^?) of the apple-shaped planet Korin. This is apparently an in-joke dating back to her middle school days. Having an alternate name was trendy at one point, and one of her friends told her that she looked like a Momoka. She liked the name and still uses it today.
She is known outside of Japan for her song "Onna no Ko ♡ Otoko no Ko" (オンナのコ♡オトコのコ^?, "Girls ♡ Boys") which is the ending theme of the anime School Rumble.
She married Isao Kikuchi on October 10, 2011, in Hawaii. Her first child was born in 2012. She has written a book about motherhood.

Reference: Wikipedia