Earlier this month, the pair celebrated 18 years of marriage – but that's not to say their relationship has been smooth sailing.
The pair have weathered two temporary separations and three separate family tragedies to become the unit they are today, and in a new post, the singer confessed they almost didn't make it to their 18th year of marriage.
Watch: Wonder Women: Pink. Post continues after video.
Pink, whose real name is Alecia Moore, and the former professional motocross racer met in 2001 at the Summer X Games. They soon began dating, before splitting up briefly in 2003.
It was the excitement of Hart's life and career that drew Pink to him, but in an interview with USA Today, the singer admitted "the excitement wears off" after "you spend a couple nights in the hospital with him when he's broken".
In 2005, during a motocross race at Mammoth Lakes, Pink proposed to Hart by holding up a sign saying "Will you marry me?" on the sidelines while he raced.