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_29547777_1 (episode VARCHAR, original_performer VARCHAR)

### Question ###
What is the episode when the original performaer is diana ross?

### Accurate SQL ###

SELECT episode FROM table_29547777_1 WHERE original_performer = "Diana Ross"