TODAY voice experiment goes viral – so Carson and Matt try it

02:13

Tuesday on TODAY, the anchors got a lesson from YouTube science guru Nick Uhas about sulfur hexafluoride, a gas that does the opposite of helium when you inhale it: It lowers your voice comically. The results were so uproarious that Uhas returned to TODAY Wednesday, resulting in Carson Daly delivering Pop Start sounding like Darth Vader.