According to reports, Britney Spears' wedding was disrupted on Thursday when her ex-husband, Jason Alexander, showed there.
Mr Jason Alexander streamed a live video from his Instagram account as he approached the event at her Thousand Oaks, California, home.
Mr Alexander approached a security guard and explained that he had been invited by Ms Spears.
After some resistance, he threatened to destroy her big day.
Mr Alexander was able to gain access to Ms Spears' home and live streamed from there as well. He was held by the security personnel at the event before police arrived.
Britney Spears and Jason Alexander married on the spur of the moment in Las Vegas in 2004, but their marriage was dissolved 55 hours later.
"He has been apprehended handcuffed and arrested for his terrible criminal activity," Ms Spears' solicitor, Mathew Rosengart, said.
Ms. Spears, meantime, married Mr. Asghari on Thursday after nearly six years of dating. They met on the set of a music video in 2016.