"dreamland" is a song recorded by japanese music duo bennie k. it was released through for life music on june 8, 2005. the song was used in commercials for coca-cola, for which it was specifically written, starting in march 2005. it quickly gained in popularity, prompting bennie k's management to be flooded with inquiries about a potential release date. due to overwhelming fan demand and attention from the general public, yuki and cico reworked the song and released it as the lead single to their fourth studio album "japana-rhythm". the single became bennie k's most successful single, with multiformat sales of 3 million units.