The only thing better than watching celebrity romances play out on-screen is seeing your favorite stars get together in real life. Even though celebrity relationships aren't known for their longevity, many fans feel nostalgia for several fleeting love affairs. To honor the celebrity flames that tugged at our heartstrings the most, PrettyFamous, an entertainment data site by Graphiq, found the most famous Hollywood couples. In order to determine which celebrity pairs made the cut, PrettyFamous looked at married or divorced couples where least one member is a notable actor. The couples were then ranked according to their combined Actor Scores. These are scores out of 100 that take into account the total IMDb votes for the TV shows and movies each person has appeared in, his or her Wikipedia page views over the past 30 days and the total number of award nominations he or she has received. Ties between couples were broken by the difference between each member of a couple's individual Actor Score — the couple with the closest Actor Scores were ranked higher. Out of 66 couples, about 27 are still married — a testament to the fleetingness of many relationships in Hollywood. The top eight couples with the most star power have divorced (or in "Brangelina's" case, in the middle of a divorce). The most popular celebrity couple still together is Michael Douglas and Catherine Zeta-Jones, whose 16-year marriage clocks in at number nine. Some celebrities also appear a couple times in different relationships, like Brad Pitt, Ashton Kutcher and Barbra Streisand, proving that as long as they're a part of a couple, their star power is probably enough for them and their significant other. Note: Because recent Wikipedia page views are taken into consideration, the results tend to favor couples who are still popular now, or whose notoriety has stood the test of time. These couples are also all actors, so singers or other celebrities like Kim Kardashian and Kanye West were not included.