It's always a big deal when celebrities say "I do," but it's especially intriguing when their marriages come as a surprise.
Blake Lively and Ryan Reynolds reportedly tied the knot in South Carolina this weekend, but who knew they were even engaged?
Marriages like this aren't uncommon among famous couples. In fact, we found a slew of celebrities who tied the knot quickly, quietly and privately.
Natalie Portman and Benjamin Millepied
Portman and Millipied met on the set of the film "Black Swan," where Millepied served as a choreographer. The pair announced their engagement (as well as Portman's pregnancy) in late 2010; they wed in a quiet ceremony in Big Sur, California, in August of 2012.
Jay-Z and Beyoncé Knowles
Jay-Z and Beyoncé opted for an extremely private wedding ceremony atop Jay's Tribeca penthouse in April of 2008. In fact, Knowles didn't debut her wedding ring until more than a month later.
Nick Cannon and Mariah Carey
After a courtship that lasted less than two months, entertainers Nick Cannon and Mariah Carey married in April, 2008. The ceremony took place at her private estate in Windermere Island in the Bahamas.
Mark Zuckerberg and Priscilla Chan
Mark Zuckerberg wed his longtime girlfriend Priscilla Chan in May of 2012. The pair, who met at Harvard, kept their wedding a complete secret — even to the guests who thought they were attending Chan's graduation party.
Javier Bardem and Penélope Cruz
Bardem and Cruz first met while filming the 1992 Spanish film "Jamón, Jamón," but they didn't begin dating until 2007. They kept a low profile throughout their relationship, finally marrying in a quiet ceremony in the Bahamas in 2010.
Pamela Anderson and Tommy Lee
Pamela Anderson and Tommy Lee were husband and wife before their fans knew they were dating. The pair married in 1995 after knowing each other for only 96 hours, but they divorced three years (and two children) later.
Julia Roberts and Lyle Lovett
Back in 1993, actress Julia Roberts wed musician Lyle Lovett at a church in Marion, Indiana. Despite both appearing in the film "The Player" in 1992, the pair had only been dating for a little more than three weeks. They divorced in 1995.
John F. Kennedy Jr. and Carolyn Bessette
The late John F. Kennedy Jr. and Carolyn Bessette-Kennedy were popular paparazzi targets since they started dating. Wanting no unwanted snapshots at their wedding, the two stealthily tied the knot in 1996 after six months of careful planning.
Michael Jackson and Lisa Marie Presley
Pop icon Michael Jackson and rock royalty Lisa Marie Presley wed secretly in the Dominican Republic in 1994, but the two didn't officially confirm their wedding until three weeks after the ceremony. They divorced less than two years later.
Ryan Reynolds and Scarlett Johansson
Ryan Reynolds, the man of the hour, was also once married to actress Scarlett Johansson. The couple had a private wedding ceremony in 2008, which was reportedly only attended by close family and friends. By 2010, the pair had parted ways.