Catch up my friend on Dan/Phil lore before tour

So I have been watching dan and phil for forever but none of my friends have really been into them as much as me. My bestie is coming with me to the tour but she doesn’t really know any of the lore. I gave her the basics but I want to give her some video recommendations to show her what she is getting herself into lol. What are some good videos to show her to get her started?