Singers who don't (normally) speak Russian, but dare to sing in it (sometimes)
Nothing in Tatiana's bio indicates any Russian family heritage. So it is nothing short of amazing how perfect her Russian sounds on this song.
It is just one line, but it is Celentano. One word would have been enough. Read the comments from Russians on youtube.
У Лаймы акцент минимальный, но мы ее все равно любим.