It really feels like these two have been together forever. Unlike Benji Madden (5'7") and Cameron Diaz (5'9") from earlier in the list, Joel Madden is taller than his wife, Nicole Richie. There's a good seven inches between them. This unlikely couple first started dating in 2006 and they've been going strong ever since. They got engaged at the beginning of 2010, after four years of dating, and their wedding took place at the end of that year.
Not ready to stop at being the perfect couple, Madden and Richie started creating the perfect family, too. Their daughter, Harlow Winter Kate Richie-Madden, was born in 2008, and their son, Sparrow James Midnight Madden, was born in 2009. Of course, they're both totally adorable. Fun fact: Nicole Richie was the one who introduced her friend, Cameron Diaz, to Joel's brother, Benji.