How about their cities and states?
SELECT T1.first_name ,  T1.last_name, T1.city, T1.state FROM customers AS T1 JOIN invoices AS T2 ON T2.customer_id   =   T1.id ORDER BY T2.invoice_date DESC LIMIT 5
their cities and states refer to customer's city and state; first_name, last_name for customer identification; JOIN operation is used to link customers with their invoices; ORDER BY T2.invoice_date DESC to sort by the most recent invoice dates; LIMIT 5 to restrict the result to the top 5 records.