Overview
- Hailee Steinfeld announced the couple’s baby girl in April 2026 on her Beau Society Substack with the post titled “Special Delivery.”
- Steinfeld later revealed the child’s full name in a letter on her Substack as Harper Haize Allen.
- Allen told E! News that the name “was my wife’s idea” and said Steinfeld can explain any special meaning better than he can.
- In interviews tied to a Natrol partnership, Allen said he loves being a dad, that his sleep has changed, and that fatherhood has given him a new sense of purpose.
- The couple, married in May 2025, continue to control personal disclosures through direct channels like Substack, a pattern that reflects a broader trend of celebrities using direct-to-fan platforms to manage privacy.