Green Day made a surprise visit to Comic Con, and did a surprise performance... on their ice cream truck! (to promote their new movie) Thank you Marc!

https://www.instagram.com/p/DbMGnPDxKz7/

https://www.instagram.com/p/DbMhT6-No2X/

Way back 32 years ago, they used a Bookmobile 

https://youtu.be/1SQ4pD0XLYc