Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_2144389_9 ( japanese_translation VARCHAR, vocalist VARCHAR )

### Question ###
When momoiro clover z is the vocalist what is the japanese translation?

### Accurate SQL ###

SELECT japanese_translation FROM table_2144389_9 WHERE vocalist = "Momoiro Clover Z"