Jillian Michaels & Fiancée Heidi Rhoades Break Up: We've 'Been Split For A While Now'
Production has officially wrapped on "Mamma Mia: Here We Go Again," and a behind-the-scenes sneak peek has been released to celebrate! Lily James is among the new faces joining the film. Plus, Cher – Yass, Cher! – is also set to star.