I almost skipped the profile of Will Oldham in last week's New Yorker, mostly because I kept confusing him with Todd Oldham (I know, I'm dumb).
But so anyway, what got me interested was when I saw this while scanning the article:
And he played a police officer in "Trapped in the Closet," the multipart comic opera by the R. & B. singer R. Kelly, who is one of Oldham's favorites. 
And so, of course, I ended up reading the whole article. I'm easy: I might even read a New Yorker theatre review if it mentioned R. Kelly.
 The episode in question, by the way, was number 15, from the second series of episodes (also known as the episodes that really disappointed me).