"Mottai Night Land" (もったいないとらんど, Mottai Naito Rando, "Wasteful Night Land") is the seventh physical single by J-pop artist Kyary Pamyu Pamyu, released on November 6, 2013, in both regular and limited editions. The song is used for the Japanese Cellphone company au's "Smart Value" commercials, in which she is featured as a guest star. The B-Side "Sungoi Aura" is used for Sunstar's "Ora 2" Toothpaste commercials. The single's title is a mixture of the Japanese word mottainai, usually meaning wasteful but precious here, and the phrase Night Land. The music video was released on 23 October 2013.