Hailee Steinfeld, the star of Sinners and Pitch Perfect 2, has given birth to her first child with NFL quarterback Josh Allen. The couple shared the exciting news on Hailee's Beau Society Substack, where she often updates her followers on her motherhood journey. The baby girl, named Baby Beau, was born in May 2024, and Hailee celebrated her first Mother's Day with a series of adorable photos on Instagram. The name Beau has a special meaning for Hailee and her family, as it was a childhood nickname given to her by her parents, who initially struggled to decide between Hailee and Bailee. Josh Allen, the proud father, expressed his excitement about becoming a dad during a press conference, emphasizing the importance of this new chapter in his life. The couple's romance has been a winning one, and their baby's arrival marks a significant milestone in their relationship. As Hailee continues to share her experiences as a new mother, fans can expect more heartwarming updates from the Beau Society Substack.