I didn't know what was coming. Imagine my delight/confusion when Kyon meanders into the Korean classroom to see Son asleep at her desk. (There's no Son in Haruhi. Son is a character from a live action movie, Linda Linda Linda.) I had a moment of cognitive dissonance there. In the anime, I think they use Aya Hirano (the voice actress of Haruhi) as the model for Son.
This scene is taken directly from Linda Linda Linda. It's as if Kyon stepped into it.
It turns out that there were a few other references to Linda Linda Linda in the anime. Awesome. Anything that draws more attention to The Blue Hearts' Linda Linda can't be all bad. Here's the cast members performing the song at YouTube.
Linda, Linda! Linda, Linda, Lindaaa-aaah-ah-ah!