The Hollywood Reporter recently posted a photograph of a gawky boy in a grass skirt. Caption: "Is this a young Conan?" Today, Conan O'Brien confirmed with a tweet: "Yes, this is a photo of me at 18." Updated!

No word on what, exactly, the image depicts, but The Wrap guesses it's "from his time at Harvard," perhaps "some weird, homoerotic, Ivy League, secret society thing." Grand colonial furnishings and awkwardly sexual nerds? This must be the work of the Harvard Lampoon.

Update: Commenter VCR says the photo was a Lampoon gag—and proves it with a scan from a 1982 issue of the Harvard humor magazine. [THR, TheWrap, @ConanOBrien]