During last Friday night’s Clooney-organized “Hope for Haiti” telethon, Justin Timberlake teamed up with songwriter Matt Morris for a rendition of “Hallelujah,” the Leonard Cohen song that was popularized by a combination of Jeff Buckley, John Cale, Rufus Wainright, Shrek, and, um, Jason Castro. It was, as far as covers of “Hallelujah” go, not great, with tag-team (and probably barely rehearsed) vocals occasionally obscuring what is simply one of the most effective melodies in the history of popular song. Anyway, it’s number one on iTunes now, so your mom and your 13-year-old niece/cousin probably bought it, which is nice, because now you can totally get them to like Leonard Cohen. Or at least Jason Castro. Now take a moment and be grateful that it wasn’t this.