17 year old Macaulay Culkin married 17 year old Rachel Miner, but it only lasted two years.

Melanie Griffith married Don Johnson in 1976 in Las Vegas when she turned 18 years old.

Though technically they never married, 22 year old R&B star Brandy became pregnant and settled down with her producer, Robert ‘Big Bert’ Smith. It was only when they went separate ways in 2003 that it was revealed that their nuptials were never official.

21 year old Kate Hudson married rocker Chris Robinson in 2000. Despite the birth of their son Ryder, the couple split in 2006.

Jessica Simpson was 22 when she married Nick Lachey, 29, in 2002. They divorced in 2006.

Married before the age of 25, Reese Witherspoon and Ryan Phillppe split after seven years of marriage and two beautiful children.

19 year old Taylor Hanson (of the group ‘Hanson’) married his 18 year old and four month pregnant girlfriend Natalie Bryant. They are still together seven years and four kids later.

LeAnn Rimes married backup dancer Dean Sheremet when she was 19-years-old. In 2009, scandal hit the seemingly happy couple when LeAnn was spotted getting cozy to her married costar Eddie Cibrian. The couple divorced, and Rimes and Cibrian are getting ready to head to the altar.

Ashlee Simpson married Pete Wentz, when she was 24-years-old and pregnant with the couple’s child. Less than 2.5 years of marriage later, she filed for divorce from the Fall Out Boy.

Scarlett Johansson, who separated from Ryan Reynolds in 2010, was only 24-years-old when the couple traded vows.

Miley Cyrus and Liam Hemsworth get in engaged at 19 years and 22 respectively/