David Dobrik Re-Enacts Being Tickled By Justin Bieber with Jimmy Fallon

One of YouTube's most beloved stars is getting increasingly mainstream [we love a come-up], having just appeared as a guest for the first time on The Tonight Show with Jimmy Fallon.

The interview was just as cute as you'd think it would be, with David re-enacting the moment that he first met Justin Bieber at a nightclub. Apparently, Biebs...tickled him? LOL! Check it out below!