Gene Simmons has joked his wife "knows where all the bodies are buried".
The musician married his partner of 28 years, Shannon Tweed, in October of last year. Gene admits that while he has not been easy to live with, his long-term partner has supported him and "put up" with all of his flaws.
Gene has explained he finally realised that family is the most important thing in life - which convinced him to walk down the aisle with Shannon.
"I've been arrogant and selfish all my life, thought that I had my cake and eat it too. And Shannon has put up with my poo poo for 28 years. And after two wonderful children - Nick is 23 now, Sophie is turning 20 - for her to stick around and put up with all that… And she knows everything, she knows where all the bodies are buried," he told UK TV show Daybreak.
"This is the question for all you guys out there: Imagine you are on your death bed and you've lived a long life and achieved everything, who do you want around your deathbed for that last breath of air? If you want the woman you love and your children, then don't wait before you die, love them and be good to them while you're alive."
Gene also spoke about a humanitarian cause he feels passionate about.
The 62-year-old Kiss star explained he is supporting two army charities, Help for Heroes and Wounded Warrior Project, who help war veterans and wounded soldiers.
"When you have people who come back from fighting overseas and they are not given what they deserve…these are the people that make everything possible," he said. "It's very important that we raise awareness that these people need help assimilating back into society, their families need help… We talk about giving until it hurts - you should give until it feels good. We all have a conscience and these are the people who make our life worthwhile.
"I mean the least any of us can do is to make sure that you welcome them back home and make it easier to come back into society and for God's sakes, give them a job or put a helping hand out. We have never met a vet on this side of the Atlantic who wanted a parade or awards. To meet a vet who's been over there voluntarily is to be humbled by how petty our lives are. You just have to buckle your knees for a second and give them honour."