Mariah Carey and Nick Cannon Renew Their Marriage Vow in Paris

What better place to renew your vows than in Paris? That's exactly what Mariah Carey and hubby Nick Cannon did to celebrate their fourth year as husband and wife on Friday, three days before their actual anniversary, April 30 -- which also happens to be the first birthday of their twins Monroe and Moroccan. With the Eiffel Tower as their backdrop, Carey -- in a white satin mermaid-style gown with a black bow -- beamed as a white suit-clad Cannon got down on one knee, took her hand, and looked into her eyes during the intimate ceremony at La Maison Blanche hotel.Before they jetted off to the French capital, the "America's Got Talent" host hinted that he and his superstar wife were planning something "special and unique" -- and it looks like they achieved their goal with the lavish celebration.

Just hours before they said "I do" for the fourth time, the lovebirds did some shopping for "Dem Babies" (the twins' nicknames) at -- where else -- Baby Dior. When they weren't perusing the chic clothing, they stopped for smooches for the cameras. A year ago, the two were not only celebrating the birth of their son and daughter, but also their third anniversary, which they marked with a vow renewal right there in Carey's hospital room.

The "We Belong Together" singer is so convinced she and Cannon will be together forever, she has even named her new perfume "Forever" in their honor. So what's their secret? "Nobody can predict the future," said Cannon to promote his wife's new fragrance. "You just have to give your all to the relationship you're in and do your best to take care of your partner, communicate and give them every last drop of love you have. I think one of the most important things in a relationship is caring for your significant other through good times and bad."

Cannon and Carey have certainly weathered some bad times recently when he suffered kidney failure in January and had to be rushed to the hospital. As a result of the health scare, the "America's Got Talent" host has had to scale back on his work and even quit his morning radio program. "You go through difficult times, but as long as you hang on to the beautiful things, it's great," Cannon adds. "Even when it's rough, it's real."

Not many people would have predicted that Carey, 42, and the 11-years-younger Cannon would have made it this long — especially since they married after only knowing each other six weeks — but he says their love was a long time in the making. Recalling the first time they met, Cannon says, "I presented her with an award at the [2005] Kid's Choice Awards. I was so nervous but decided to take my chances and give her a kiss on the cheek! I had to have that kiss." Three years later, Carey cast him as her love interest in her music video "Bye Bye" — and the rest is history. "Mariah is a beautiful and talented person, and I've had a crush on her for as long as I can remember," Cannon continues. "Every day, my respect for Mariah continues to grow higher. She's a caring, warm and funny person. People have no idea how funny she is! I feel like I've always known she was my forever love."