Bang Bang: Who else can kick a show off with Storm Troopers, Nick Jonas, Adam Levine, Selena Gomez and Chewbacca? Slime Sensation: Blake had one big surprise for his fans! Out of nowhere, slime covered audience members in the first dozen rows. Joe's Target: While Joe Jonas and his band lounged on the couch backstage, Blake came running in ready to shoot dozens upon dozens of toilet paper in the band's face. Old School: Blake decided to take one for the team and share a picture of himself back in the day. Fierce Fashion: he asked them to vote for his wardrobe changes. Between an unicorn, emoji and Abe Lincoln, fans quickly voted for the first choice.