To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Billie Eilish has revealed the surprisingly effective strategy she’s using to keep her next album under wraps: keeping the secret from herself. The 24-year-old superstar opened up exclusively to Metro while promoting her new 3D concert film directed by none other than James Cameron. The film captures performances from Eilish’s mammoth Hit Me Hard and Soft tour, filmed during her run at Manchester’s Co-op Live last year, and promises fans an innovative, immersive live concert experience packed with both her biggest hits...