Confira abaixo letras (lyrics) de Yoshiki Fukuyama:

Natsu no Hi (1.2.3)

kumo hitotsunai sora dokomademo Wow wow yeah! 
Ano yama no mukou he boku no shiranai kanata he tsuzuiteru 

Saa Vacation! Shigoto nara atomawashi 
Imasugu kono heya wo tobiidasou 
With you natsu no hi wa kagirinaku 
Suteki na kibun ni sasowarete With you 

Kono mado wo akereba midori no mori Wow wow yeah 
Futo mimi wo sumaseba kotoritachi no saezuri ga kikoeru 

Saa Vacation! Kutsu nanka nugisutete 
Imasugu kono heya wo nugedasou 
With you natsu no hi wa kagirinaku 
Yumemiru kimochi ni sasowarete With you 

kumo hitotsunai sora dokomademo Wow wow yeah! 
Ano yama no mukou he boku no shiranai kanata he tsuzuiteru 

Saa Vacation! Shigoto nara atomawashi 
Imasugu kono heya wo tobiidasou 
With you natsu no hi wa kagirinaku 
Suteki na kibun ni sasowarete With you