Once Seal made up his mind to marry Heidi, he pulled out all the stops to make it happen.

"The most amazing days before I had my family was when I would be snowboarding up in the high alpine in Whistler," he says. "I thought to myself, 'Well, if I propose to my wife, Heidi, I want it to be really special because, after all, this is the one time that I'm going to do this, right?' I wanted her to be a part of the most treasured moments in my life to that point."

To prepare for the proposal, Seal asked friends to load a bed, food, rose petals and champagne into a helicopter and transport them to the top of a mountain. Then, as soon as the weather would permit, Seal flew Heidi to the peak and asked her to be his wife.

They said "I do" on a beach in Mexico on May 10, 2005. This was their first wedding, but it wasn't their last! Every year on their anniversary, Seal and Heidi get married all over again.

"We do the ceremony again every year," Seal says. "It just keeps you focused. It reminds you why you got married—not that we need any reminding."

Since 2005, the couple has welcomed two sons into their lives, Henry and Johan. Despite challenging careers and the demands of three small children, Heidi and Seal keep their spark alive.

"The most important thing is that we put each other first. I always say that it goes in order of priority—it's my wife first, then the family, then my career," Seal says. "The most common hiccup is when couples get married … and then they have kids, and it [becomes] all about the kids, which is understandable because they're miraculous. But you've got to put each other first…she will always be number one for me."