An assault claim against Sir Rod Stewart in Florida has still not been resolved and a new court date has been set, records show.
Both men deny the accusation.
At a hearing last month, the court heard the case was "very close" to being resolved.
But following a hearing on Friday, a new pre-trial date was set for 26 March, online court documents show.
A spokesman for Palm Beach County state attorney Dave Aronberg said "there are negotiations" with the defence team.
Sir Rod and his son were charged following an alleged altercation with a guard at the Breakers Palm Beach Hotel.
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Jesse Dixon claims the pair were part of a group that objected to being denied entry to a private party in a children's area, according to police documents.
When asked to leave, it is alleged Sir Rod and his group "began to get loud and cause a scene", before Sean Stewart got "about nose to nose" with Mr Dixon.
The guard claimed to have been pushed by Sean before Sir Rod came towards him and punched him in the ribs.
Sir Rod has been married to model Penny Lancaster, 49, since 2007.
He has eight children in total, split between three marriages. Sean is his third child, who he had with his first wife Alana Stewart in 1980.