Kevin Delaney is the director of visitor experience at the Museum of Discovery in Little Rock. On Monday, May 5, he performed multiple science demonstrations with Fallon as his "laboratory assistant." Delaney was chosen after Tonight Show producers reached out to educators at more than 50 museums across the country.
Based on a video the museum submitted, Delaney was selected to appear on a test show before debuting Monday night.
Watch Delaney school Fallon in the video below.