Scarlett Johansson joked at the Sing 2 premiere in Los Angeles that she ruined a Christmas tradition for her kids. Her daughter found their Elf on the Shelf packaging in a dusty box, which made her no longer believe in the magic. Johansson shares two kids with husband Colin Jost. She attended the premiere alone as Jost had a show in New York. The couple takes Secret Santa seriously and Scarlett's siblings are competitive. The premiere was attended by other A-listers and Kim Kardashian even had a private showing of the movie in her backyard.