Britney Spears’ ex-husband just tried to ruin her big day!

Fans might not know that she got married to Jason Alexander.

They got hitched in Vegas in a quick ceremony in January 2004.

The marriage didn’t last long and ended 55 hours later.

Britney Spears is now getting married to Sam Asghari, who she started dating in 2016.

Sam popped the question last September and fans are excited to see him get married.

Jason clearly wasn’t – he managed to get through security and find his way into Britney’s house!

He was dragged outside and TMZ got the photos of him being detailed by security.

The police showed up and will remain on scene to make sure everything goes smoothly.