On January 3, 2004, Spears married her childhood friend Jason Allen Alexander in Las Vegas, Nevada. The marriage was annulled 55 hours later. On September 18, 2004, Spears married Kevin Federline. They had a son on September 14, 2005 named Sean Preston Spears Federline. On September 12, 2006, Britney gave birth to their second son, Jayden James Spears Federline.