Jenna Dewan is a proud mom of three! The actress, alongside her ‘The Rookie’ co-star, Nathan Fillion, opens up to ET’s Deidre Behar about welcoming her third child, a daughter, with fiancé Steve Kazee. Jenna also dishes on working with Steve on the ABC procedural, where he plays the ultimate bad guy. Plus, Nathan and Jenna react to ‘The Rookie’ finding major success behind the scenes on TikTok, where they often share videos pranking the cast and goofing off on set. Season 7 of ‘The Rookie’ premieres Jan. 7 on ABC.