With mere weeks to go until the release of Fifty Shades Darker, our Summer is getting a whole lot steamier. And no, we're not just talking about the film's hot trailers and handful of teaser pictures. We're referring more to the full soundtrack, which is packed with high-profile names from Sia to John Legend. Up until this week, we'd only really gotten a taste of Taylor Swift and Zayn Malik's collab, but now Halsey has added her song, "Not Afraid Anymore," to the mix. Check it out below.