"Ai o Torimodose!!"(愛をとりもどせ!!), also known as "YOU wa SHOCK"(YOU は SHOCKyū wa shokku) from its refrain, is the famous opening theme of the popular Japanese TV series Fist of the North Star(北斗の拳Hokuto no Ken). The song's title means "Take back the love!!" in English and is performed by the rock band Crystal King(クリスタルキングKurisutaru Kingu). The verses are sung by Monsieur Yoshisaki(ムッシュ吉崎Musshu Yoshisaki) and the chorus by Masayuki Tanaka. "Ai o Torimodose!!" is featured as an extra "special BGM" in the PlayStation 2 version of the multiplatform Jissen PachiSlot Hisshohou! Hokuto no Ken video game and is also used as the opening for the 2005 Sega-Sammy arcade arcade game. Monsieur Yoshisaki sung the song solo for the movie Shin Kyūseishu Densetsu Hokuto no Ken: Raoh Den Junai no Shō.