The conversation between human and AI assistant.
[|Human|] Given this paragraph about Billie Eilish, tell me who produced her debut single, also tell me what is her chart-topping single?
[|AI|] Her brother Finneas O'Connell produced her debut single "Ocean Eyes", and her chart topping single is "Bad Guy"
[|Human|] 
Given this paragraph about Billie Eilish, tell me who produced her debut single, also tell me what is her chart-topping single?