Rob and Kris may now be Hollywood's hottest couple, but things weren't always so peachy for the young duo. While filming the first Twilight installment, Kristen was still with longtime beau Michael Angarano and Rob was rumored to be romancing Nikki Reed. But clearly, Kris was bitten by the hunky Pattinson vampire bug, and the two have been pretty much together since the second installment, New Moon, and Robstenites are still rejoicing.
Jen may be the gal best known for an infamous former relaysh (hello, Brangelina), but her start with Justin was anything but smooth. And that's because their romance began a little too close to Justin's breakup with then-GF Heidi Bivens. Heidi and Justin were together for 14 years before Justin and Jen became the hottest hipster couple. Despite the rocky beginning, J&J are still going strong.
Need we even explain this couple's early run-in with heartbreak? When Brad and Angie first met, Brad was still married to Jennifer Aniston, and Angie was well-known for her H'wood bad-girl image. But their onscreen chemistry in Mr. & Mrs. Smith couldn't be tamed—the two paired up right after Brad left Jen. Fast-forward seven years later and Brad and Ange are still very much in love. With a world-traveling brood of six, they've officially cemented their status as Hollywood-couple royalty.
Consider it an unlikely recipe for happiness when your affair is revealed on every tabloid cover. But that's exactly what happened to LeAnn and Eddie, who were both married (she to Dean Sheremet and he to Brandi Glanville) at the time their love scandal broke. And for whatever reason, the unconventional and scandal-plagued start has worked for the pair. They're nearing their first wedding anniversary and LeAnn has even ended her Twitter war with Brandi Glanville. Awww.
Gisele may be facing some heat from her Super Bowl comments, but it was just a few years ago when the real fire was from Bridget Moynahan. The actress and Brady dated for three years before Tom and Gisele paired up (shortly after Brady's breakup and Gisele's split from Leonardo DiCaprio). Things got even more complicated when Bridget dropped the ultimate bomb: she was pregnant with Brady's son. But since then? Bridget, Gisele and Tom have all worked out their differences. Hey, three doesn't have to be a crowd, right?
Before this version of Bennifer hit the red carpet, Ben was engaged to Jennifer Lopez in a very public (and pink-diamond worthy) romance. As for Jen? She was previously married to Scott Foley for four years and then dated Michael Vartan just before hooking up with Ben. Questionable behavior aside, Ben and Jen have settled down and are now pregnant with their third child. And we get to enjoy the adorable photos of their precious daughters, Violet and Seraphina—happiness for all!
A very pregnant Natalie stole our hearts when she accepted her Academy Award for Black Swan with Benjamin Millepied, her choreographer and baby daddy, proudly at her side. But when Ben first met Nat on set, the choreographer was still together with live-in girlfriend and ballerina Isabella Boyston. Isabella was reportedly blindsided by the romance, but N. and B. have been able to move past the scandal. With adorable baby Aleph on board, the couple seems ready as ever to head down the aisle—here's hoping!
In the case of Will and Kate, the road to royalty stemmed from a rather rocky past. The couple met while students at St. Andrews in 2003 and their romance quickly became the object of tabloid speculation. But instead of heading down the aisle, the couple took a break in 2007 amidst rumors of cheating. And the breakup did their romance good—the duo officially wed last year and have quickly become one of the world's most beautiful and beloved couples. How royally fabulous!
"The secret is that we had failures before," Banderas once said of his longtime love. And the theory seems to work for the couple—they've been together for 17 years and have coped with Melanie's substance abuse together. As for the beginning? It's even rockier, considering Melanie was married to Don Johnson and Antonio was married to Ana Leza when they first met on the set of Two Much in 1995. Hey, at least they learned from their mistakes, right?
Ellen and Portia may be two lucky ladies, but they certainly didn't have a smooth start. Portia left then-GF Francesca Gregorini when she met Ellen, and Ellen was dating Alexandra Hedison at the time. And now? The couple's faced the odds as an unlikely and gay couple. Kudos for showing the world love has no gender—we adore this twosome!
MORE PHOTOS: Young Love