When was the song “Sixteen Going On Seventeen (SeoHyun)” released by Girls' Generation?

The song Sixteen Going On Seventeen (SeoHyun) was released in 2011, on the album “Into The New World (Girls’ Generation the 1st Asia Tour)”.

Girls' Generation

Oscar Hammerstein II / Richard Rodgers

I am sixteen going on seventeen
I know that I'm naive
Fellows I meet may tell me I'm sweet
And willingly I believe

I am sixteen going on seventeen
Innocent as a rose
Bachelor dandies drinkers of brandies
What do I know of those

Totally unprepared am I
To face a world of men
Timid and shy and scared am I
Of things beyond my ken

I need someone older and wiser
Telling me what to do
You are seventeen going on eighteen
I'll depend on you

When was the song “Sixteen Going On Seventeen (SeoHyun)” released by Girls' Generation?: The song Sixteen Going On Seventeen (SeoHyun) was released in 2011, on the album “Into The New World (Girls’ Generation the 1st Asia Tour)”.
Who composed the song “Sixteen Going On Seventeen (SeoHyun)” by Girls' Generation?: The song “Sixteen Going On Seventeen (SeoHyun)” by Girls' Generation was composed by Oscar Hammerstein II and Richard Rodgers.