No, not Whitney.
Our neighbour just called us over at 9pm. He has a number of Queen of the Night [wiki] plants in his backyard.
Night-blooming cereus is the common name referring to a large number of flowering Cereuscacti that bloom at night. The flowers are short lived, and some of these species, such as Selenicereus grandiflorus, bloom only once a year, for a single night. The night-blooming cereus is also referred to as princess of the night, Honolulu queen (for Hylocereus undatus), and queen of the night.