he added, referencing his daughter's all-black gothic ... writing in the caption: "Happy 18th Birthday Dannielynn! You are my entire heart. I love you more than I can ever express.

posting a video montage of the father-daughter duo throughout the years, with plenty of childhood shots. “Happy 18th Birthday ...

On Thursday, April 18, the actress, 58, shared a series of photos in honor of her daughter Grier's 18th birthday ... woman you’re growing into.. Happy golden birthday, Grier!