Pornpimol Thammasan (Thai: พรพิมล ธรรมสาร, nicknamed Koy, born April 11, 1968, in Lampang, Thailand) is a Thai singer, politician and businesswoman of Chinese descent.
[1] She is known for the original version, in Thai language, of a 1995 song Broken Hearted Woman by Jessica Jay[2] Koy was born in city of Lampang, near Chiang Mai, however she was educated in Bangkok since she was young.
Later, in 1989, she also left The Ovation and became a solo singer.
Her husband is a politician in Pathum Thani Province, which then in 2007 she was elected to be a House of Representatives member in the same province, in People's Power Party, which then moved to Pheu Thai Party in 2011.
She also owns three restaurants in Pathum Thani.