5. Blake Lively & Ryan Reynolds
These A-list celebrities have hectic work schedules, which makes it hard to see each other, but their secret is to somehow find time to spend with each other.
"My husband and I don't work at the same time, so we all go together as a family," she told PEOPLE. "If we're away as a family, it's never more than for a day. We stay together."
4. Sarah Jessica Parker & Matthew Broderick
This couple has been married for 20 years, and attribute the success of their marriage to privacy.
"The secret is, we don't discuss it. To reporters or anybody else. That's it!" the actress told the Huffington Post. "We don't hold it up as an example and we don't air our dirty laundry."
3. Alicia Keys & Swizz Beatz
The R&B singer met producer Swizz Beatz when she was only 16, and then tied the knot in 2010.
"One of us plans [a date] and the other has no idea where we are going," Keys told PEOPLE on how she and husband Swizz Beatz keep their union strong. "We've found some undiscovered gems and moments to take hikes or walks or just discover new things about life and each other. Those are my favorite times."
2. David Beckham & Victoria Beckham
Soccer legend David Beckham wed Spice Girls member, Victoria Adams, in 1999, and they've been one of our favorite celebrity couples since! What keeps their marriage going?
"We've been together for 18 years, we've been married for 16 years," David told ABC News in 2015. "So you trust each other's judgment. I think that has worked for us."
1. Faith Hill & Tim McGraw
Nothing says love quite like creating a collaborative album with your loved one. Singer-Songwriters Faith Hill and Tim McGraw recently came out with a joint album called The Rest of Our Lives. So what keeps this couple's bond so strong?
“You tolerate a lot too. I’m not the easiest person,” Hill added, before admitting that one of the biggest secrets might just be that, “We do actually like one another.”
Which secret is your favorite? Let us know!