"Keno ohayou" 是日語 "生日快樂" 的意思。以下是這首歌的歌詞：
Keno ohayou, kitto chigau taiseki ni
Keno ohayou, mune no oku o terashite
Uchi ni kago ga sumazuretara
Omoikazete miru toki ni sugite shimau
Sono hi mata, kaette kita yō ni
Tsuyoku sasarete, itsumo mō yūjikereba
Keno ohayou, kitto chigau taiseki ni
Keno ohayou, mune no oku o terashite
Kono koe ga kikoeru koto mo nai to iu hi mo
Kono mune ga warau hi mo aru kara
Kono koe ga kikoenai yō ni tsuzuku koto
Hikari no tsuzuki de mitsumete umarekawaru
Hitori hiki, hitotsu ga koboreru no nara
Omoide ni kizuite, chikau toki o
Kono koe ga mune o ude o kaete
Sukoshimo hakanai tsuyosa ga miete yuku yo
Keno ohayou, kitto chigau taiseki ni
Keno ohayou, mune no oku o terashite
Kono koe ga uchi o uchi ni nararezumi-ageba, "Dōsō suru ka?" kōrando ii na koto deshita nara hokori mo aoi hi ni miageru
這是一首很好的祝福的歌曲，祝願所有聽眾生日快樂！這首歌曲提醒我們要珍惜生命中的每一個瞬間，並珍惜與自己親近的人。讓我們一起享受生活的美好，享受生命中的每一個時刻。