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_23871828_1 (week__number VARCHAR, original_artist VARCHAR)

### Question ###
In what week was the original singer Whitney Houston.

### Accurate SQL ###

SELECT week__number FROM table_23871828_1 WHERE original_artist = "Whitney Houston"