For your consideration: MORITAKA Chisato
Age: 39
J-Pop star: 80s & 90s
Kids: 2
She played with the other H!P kids at the Sharan Q 20th anniversary concert at the Budoukan.
Yep, she's the original artist and songwriter for a slew of H!P tunes, including "Watarasebashi" and "The Stress."