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_66880 ( "Year" real, "Artist" text, "Album" text, "Record label" text, "Weeks at number one" real )

### Question ###
What's the sum of years when the Artist of the queen were less than 1?

### Accurate SQL ###

SELECT COUNT("Year") FROM table_66880 WHERE "Artist" = 'queen' AND "Weeks at number one" < '1'