How many original artists were there for the Group Performance?
CREATE TABLE table_3523 (
    "Week #" text,
    "Theme" text,
    "Song choice" text,
    "Original artist" text,
    "Order #" text,
    "Result" text
)
SELECT COUNT("Original artist") FROM table_3523 WHERE "Theme" = 'Group Performance'
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: How many original artists were there for the Group Performance? ### Input: CREATE TABLE table_3523 (
    "Week #" text,
    "Theme" text,
    "Song choice" text,
    "Original artist" text,
    "Order #" text,
    "Result" text
) ### Response: SELECT COUNT("Original artist") FROM table_3523 WHERE "Theme" = 'Group Performance'