Meryl Streep is set to become a grandmother for the first time.
The 'Mama Mia! Here We Go Again' star's 35-year-old daughter Mamie is reportedly expecting her first child with her fiancé Mehar Sethi, with a representative for the star confirming the news to Us Weekly.
The couple announced they had gotten engaged during a holiday to Croatia in August, with Mehar adding a picture of the loved-up pair on Instagram, and simply captioning the post: "My fiancé."
Prior to meeting her other half, Mamie was married to the actor Benjamin Walker - whom she met on the set of 'Dangerous Liaisons' in 2008 - however they split in 2013, after just two years of marriage.
The 'Florence Foster Jenkins' actress - who also has Grace, 32, Louisa, 27, and 39-year-old son Henry with husband Don Gummer - has maintained a largely private life, and it's expected that once the new addition to the family arrives Mamie will follow suit.