Mirakururun Grand Purin! / Pi~hyara Kouta (ミラクルルン グランプリン！/ピ～ヒャラ小唄) is the eleventh single of the Morning Musume subgroup Minimoni, and their third and final single under the alias Minihamus. It was released on November 19, 2003 and sold 16,410 copies, reaching number 22 on the Oricon Charts. The single V reached #24 on the Oricon charts and sold 4,741 copies.
This is a shared double A-side with Abe Natsumi, who performs the second track as Purin-chan. Like the Minihamus, Purin-chan is a hamster character in the anime movie, Hamtaro Movie 3: Miracle in Aurora Valley.