Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE singer (Name VARCHAR, Singer_ID VARCHAR); CREATE TABLE song (Sales INTEGER, Singer_ID VARCHAR)
### Question:
Show the names of singers and the total sales of their songs.
### Answer:
SELECT T1.Name, SUM(T2.Sales) FROM singer AS T1 JOIN song AS T2 ON T1.Singer_ID = T2.Singer_ID GROUP BY T1.Name