Jessica Biel and Justin Timberlake welcomed a baby boy last week, according toThe Daily Mail.The couple were apparently able to take advantage of the coronavirus pandemic to help keep the pregnancy under wraps. They're now reportedly holed up together in Big Sky, Montana, with Biel's mother, Kimberly Conroe Biel. The 39-year-old Timberlake and 38-year-old Biel have not been publicly seen together since March. Biel also hasn't shared any photos of herself from the waist down since then, when she would have been about four months pregnant. The couple already has a son, 5-year-old Silas.