Britney Spears’ ex-husband convicted of crashing her wedding

A man once briefly married to Britney Spears has been convicted of aggravated trespassing and battery after appearing uninvited at the pop star's wedding in June.

Jason Alexander, 40, pleaded no contest to two misdemeanour counts in a California court, prosecutors in Ventura County said.

Spears married Sam Asghari at her home in Thousand Oaks, California, on 9 June. The wedding guests included Selena Gomez, Drew Barrymore, Paris Hilton and Madonna.

Alexander, a childhood friend of Spears to whom she was married for less than three days in 2004, appeared uninvited at the house before the ceremony while livestreaming on Instagram.

He entered the house and went up to the locked door of Spears' bedroom while she was inside getting ready for the wedding, according to testimony at a preliminary hearing.

Alexander refused to leave the property when told to, battered a security guard who tried to remove him, and damaged a door, prosecutors said.

After he entered his plea, a judge issued a new protective order forbidding him from coming within 100 yards of Spears or the security guard.

The Ventura County judge sentenced him to the 64 days he has already served in jail. Prosecutors dropped charges of felony stalking and misdemeanour vandalism.

Alexander's attorney, Sandra Bisignani, did not immediately reply to an email seeking comment. She previously said in court that there was no evidence he had any intention of harming Spears.

Spears' lawyer declined to comment.