As a matter of fact, their relationship was born out of scandal. Brad admitted to falling in love with Angelina during filming of Mr. & Mrs. Smith in 2004. At the time, Brad was still married to Jennifer Aniston. Jen filed for divorce in 2005.
4.) They're generous.
Angelina is a United Nations High Commissioner for Refugees ambassador, while Brad's Make It Right organization has built nearly $6 million worth of safe homes, buildings and communities for people in need. Not to mention their Jolie-Pitt Foundation has raised more than $17 million.
Whether it's contentious run-ins with paparazzi or aggressive fans, the couple has always handled themselves with class. Case in point -- when a Ukranian journalist grabbed Brad at the Maleficent premiere earlier this year, Brad kept his composure.
2.) They keep family first.
Brad and Angelina are the proud parents of six, and they make sure that at least one of them is with the brood no matter how busy they get.
"I have a big family and I have the good fortune to financially not have to work all the time," said Angelina.
Watch the video for the No. 1 reason Brangelina are the best celeb couple ever!