Who were the original artist(s) when jack stamp arranged?
CREATE TABLE table_28715942_2 (
    original_artist VARCHAR,
    arranger_s_ VARCHAR
)
SELECT original_artist FROM table_28715942_2 WHERE arranger_s_ = "Jack Stamp"
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: Who were the original artist(s) when jack stamp arranged? ### Input: CREATE TABLE table_28715942_2 (
    original_artist VARCHAR,
    arranger_s_ VARCHAR
) ### Response: SELECT original_artist FROM table_28715942_2 WHERE arranger_s_ = "Jack Stamp"