Jonna Marika Tervomaa is a Finnish pop singer and songwriter. She was born in Forssa, and became famous at the age of ten, when she won the song contest "Syksyn Sävel" with the song "Minttu sekä Ville". Tervomaa started her adult career in 1998 with her self-titled album.
Tervomaa's biggest hits include "Suljettu sydän", "Yhtä en saa", "Rakkauden haudalla", "Myöhemmin" and "Se ei kuulu mulle".