Confira abaixo letras (lyrics) de Yoshiki Fukuyama:

Shiawase no Namida (A Piece of Cake)

dokomademo aruite yukou yo
aoi sora oikakete
te wo totte shinjiru mama ni
shiawase no namida yo furi tsudzuke
shiawase no namida yo furi tsudzuke

nanimokamo yurushite maou yo
kanashimimo uketomete
me wo tojite nagareru mama ni
shiawase no namida yo furi tsudzuke
shiawase no namida yo furi tsudzuke

itsumademo futari de yukou yo
yorokobimo wake atte 

hi wo abite yume miru youni
shiawase no namida yo furi tsudzuke
shiawase no namida yo furi tsudzuke

shiawase no namida yo furi tsudzuke
shiawase no namida yo furi tsudzuke