- Ian: "We hit 20 million."
- Anthony: "20 million!"
- Ian: "That's ridiculous, guys. You guys are the best."
- Anthony: "That's more people than I can fit in this house."
- Ian: "That's more people than I can fit in my mouth."
- —Ian and Anthony amazed at the milestone achieved
20 MILLION SUBSCRIBERS!! is a Smosh video released on April 6, 2015. The video has Smosh members, fans, and various fellow YouTubers doing the "serious dance" to celebrate the Smosh channel reaching 20 million subscribers on YouTube since their debut over 9 years prior.
THANK YOU SOO MUCH for the support over the years! This never would have been possible without you guys and we appreciate you all more than words! To celebrate, let's all do the serious dance!
- Annoying Orange
- Brizzy Voices
- Dan & Phil (Dan Howell and Phil Lester)
- Game Grumps (Arin, Suzy, Danny and Barry)
- The Completionist (Jirard Khalil)
- Joey Graceffa
- Harley Morenstein
- Rhett & Link (Rhett McLaughlin and Link Neal)
- Rooster Teeth
- Ryan Higa
- Shane Dawson
- Smosh Games (Jovenshire, Sohinki, Lasercorn, Mari, Flitz and Wes)
- Smosh Squad (Noah, Keith, and Olivia)
- The Warp Zone (Davis, Schroeder, Ryan, Fish, and Odom)
- Tay Zonday
- Rhett McLaughlin, Link Neal, Tay Zonday danced while recording an episode of Song Biscuits.
- Smosh's 2005 Pokemon music video appears during the serious dance.
- Dancing guest Markiplier commented: "Congrats dudes! Thanks for having me in your celebration video! :D" It received over 3k likes.