Chikutaku☆2NITE is the theme song for the Ranma ½: Live Action Special and is performed by 9nine. The song is about teenaged girls all dressed up and heading out to a party. As part of the promotion of the song it was released on Ringtone on December 7, 2011 followed by a single on December 21st. Finally the song was performed live by 9nine live at the Shinagawa Stella Ball in Tokyo on January 28th.