E! News confirmed on Thursday that Spears and Watson filed for a marriage license from their local county clerk on March 5. They obtained the license from Tangipahoa Parish Clerk of Courts in Louisiana, and a source says the two will be wed today.
The couple have kept their wedding plans quiet, but little hints have shown up in their recent social media posts. A picture of Las Vegas Watson posted on his Instagram over the weekend led some to believe the photo was from his bachelor party, and Spears had shared a picture of herself at I Do Bridal Couture in January and said she had found her dress.
The two Jamies have been engaged since March 2013. Spears posted on her Instagram and Twitter about the event, and captioned a photo of her engagement ring ":) #hedidgood."