A fine of around $1,400 (£1,100) and 20 hours of community service will be served by the musician for the 2019 misdemeanour at his concert.

Brian Warner, the singer’s real name, appeared in court on Monday in person.

His service work in California will be permitted by the judge.

Manson, 54, initially pleaded not guilty to assault charges, but later changed his plea to no contest. No contest means he did not contest the charge, but was not required to admit guilt.

As the woman filmed Manson’s performance at the Bank of New Hampshire Pavilion in Gilford on 19 August 2019, he spat on her.

A police investigator who reviewed footage of the event said Manson was seen with his face close to the camera held by photographer Susan Fountain and spitting a “big lougee” at her.

Moments later, he returned, kneeled over her, and flung “significant amounts of mucus” into her nostril.

According to the police report, Manson “points and laughs at Fountain as she gets down and walks away”.

“I have never been humiliated or treated like this by this defendant,” Ms Fountain said in court. Manson has released 11 studio albums since 1994, three of which reached the top 10 in the United Kingdom.

In 2001, he reached number five with a cover of Tainted Love.

Several accusations of sexual assault have been made against him in recent years, and he has attempted to sue an alleged victim, claiming that she has harmed his career.