Pink is celebrating a major milestone of a birthday and her husband, Carey Hart, knows just what to say.

Hart penned a sweet birthday message to his wife complete with plenty of photos of the two and their family in celebration of her turning 40 on Sunday. The former motocross racer spoke of the couples nearly two decades together and his prediction for the couple when they turn 80.

Welcome to 40 baby. Ive celebrated 18 birthdays with you, and I can say its amazing growing up with you. The person you have grown into is inspiring, he wrote, shouting out what an amazing wife, motorcycle mama, philanthropist and businesswoman she is.

You truly are like wine. You just keep getting better, and Im so lucky to be along on this crazy ride with you, he continued. I love you baby. Looking forward many many more birthdays with you. I cant wait to see how nuts you and I are in our 80s, Hart added with a laughing emoji.