Yamamoto Sayaka Profile & Facts Yamamoto Sayaka (山本彩) is a Japanese pop soloist and a former member of MAD CATZ and NMB48 Team N. She left the band MAD CATZ in 2010 to join NMB48, where she became one of the most popular and recognizable members. She released her first solo album Rainbow while still … Continue reading Yamamoto Sayaka Profile & Facts