Shira Lazar already braved the YouTube Challenge Challenge for Comedy Week, and now she’s counting down the ten most hilarious, amazing, and ridiculous talk show moments on YouTube, featuring commentary from Grace Helbig, Shay Carl, Sourcefed, Kassem G, Husky Starcraft, and more!

From Kristen Bell’s sloth meltdown to Jimmy Fallon and Michelle Obama’s Evolution of Mom Dancing, tell us your favorite video in the YouTube comments using #bestvideo.