8 Famous Friends Who Are Also In-Laws

Cameron and Nicole became sisters-in-law when they married brothers Benji and Joel Madden, respectively. Nicole married Joel in 2010 and Cameron and Benji tied the knot five years later, but the two were actually friends before then. Nicole participated in throwing Cameron a surprise party for her 41st birthday in 2014 and even took full credit for playing matchmaker between Cameron and Benji Madden. "I'm going to take responsibility for everything! I am a devoted sister-in-law. I'm happy for anyone who is happy, and I want everyone to be surrounded with love," she said during a 2014 appearance of Watch What Happens Live.