Friday-ish 🎶🎼🎧 Have no idea who is singing this wonderful and…

Friday-ish 🎶🎼🎧 Have no idea who is singing this wonderful and well-known song "Sealed with a Kiss" (Запечатано поцелуем 💋) but we love it so much that have decided ti include in our series #wedontcancelanycultures Here is the lyrics:
Though we've got to say goodbye for the summer
Darling, I promise you this
I'll send you all my love
Every day in a letter
Sealed with a kiss
Yes, it's gonna be a cold, lonely summer
But I'll fill the emptiness
I'll send you all my dreams
Every day in a letter
Sealed with a kiss
I'll see you in the sunlight
I'll hear your voice everywhere
I'll run to tenderly hold you
But darling you won't be there
I don't wanna say goodbye for the summer
Knowing the love we'll miss
Oh, let us make a pledge
To meet in September
And seal it with a kiss
Yes, it's gonna be a cold, lonely summer
But I'll fill the emptiness
I'll send you all my love
Every day in a letter
Sealed with a kiss
UPD: we've found - The Hounds in 1967 #havefunwithrussian