The first seven episodes of Stranger Things' fourth season hit Netflix last week, and the show's cast and crew have been sharing some fun behind-the-scenes content. Director and producer Shawn Levy gave a peek at how one of the scenes in "Dear Billy" was filmed, and the official account for Stranger Things took to Instagram today to show how Millie Bobby Brown transformed into Eleven. Back in the show's first season, 11-year-old Brown shaved her head for the role, but this time she was given a wig.