Late-night host and occasional height sleuth Conan O’Brien was on the case with public radio producer and writer Starlee Kine to crack a mystery that has long stumped the internet at large — what exactly is Jake Gyllenhaal’s height?

Yes, according to Mystery Show host Kine, celebrity height internet message boards have been stumped by the Southpaw actor’s actual height, despite him having publicly stated it in an interview. So, hoping to settle the minds of Kine and commenters everywhere, O’Brien had Gyllenhaal appear on the show so an official measuring could be conducted.Watch O’Brien and Kine attempt to get to the bottom of this conundrum and discover why, although they may have an answer, the true height of Gyllenhaal may remain elusive for all of time.This article originally appeared on EW.com

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