"Guts!" is a Japanese-language song and the 43rd single released by Japanese boyband Arashi. "Guts!" was used as the theme song for the drama Yowakutemo Katemasu starring Arashi member Kazunari Ninomiya. The song begins "Memagurushiku mawaru mayoi kakiwakete" . It was the 6th best-selling single of the year in Japan, with 604,654 copies.