For Bruce Willis, this year marked the first Father’s Day as a proudgrandpa.

Fathers to the old and new, Rumerwroteon Instagram.

Seeing my father hold my daughter today was something I will treasure for the rest of my life.

His sweetness and love for her was so pure and beautiful.

Papa, Im so lucky to have you and so is Lou.

Thank you for being the silliest, most loving, coolest Daddio a girl could ask for.

Best Girl Dad in the game…

This wonderful milestone comes a year after Willisannounced his retirementfrom acting.

Because of the challenges, Willis made the decision to step away from his long career.

Bruce Willis' daughter Rumer Glenn Willis gave birth to a baby girl named Louetta.

Willis was photographed with his baby granddaughter on Father’s Day.