Here’s a curious trend I’ve noticed developing quickly on YouTube, probably because of the acclaim that the late actor Heath Ledger’s performance as the Joker in “The Dark Knight” has garnered.

His memorably malevolent turn in the latest Batman movie is likely to result a posthumous Oscar for Ledger. But perhaps more interesting is the number of fans who are doing video impressions of his performance, acting out various scenes from the movie, and posting them online in tribute.

Here are just such few videos, including ones that are dead serious and others not so much, as well as a compilation of Ledger’s various scenes at the end:

Joker/Batman Spoof

Joker Interrogation Scene

Joker Mob Meeting Scene

Joker Party Crashing Scene

Joker “Why So Serious?” Scene (as channeled by Hayden Black of “abigail’s ‘x-rated’ teen diary”)

Heath Ledger as Joker Compilation