Yumiko Arima is the original singer of the first opening theme song "Yumeippai" of "CHIBI-MARUKO CHAN," the Japanese long-seller Cartoon and Anime written and drawn by Momoko Sakura (The song was released in 1990 by her original artist name "Yumiko Seki."). This song "Hey! Wonderland" is another fun, sweet and nostalgic tune from Yumiko Arima's 1st debut and original album "Too Many Dreams." Enjoy "Hey!" 2024 Version lyrics and music by Yumiko Seki arranged by Takuya Tsuneta