The confrontation allegedly took place on Christmas Eve
The superstar jammers covered Rod Stewart, The Clash, Warren Zevon and more in aid of an elementary school
Last month, Dalle was found to have "wilfully" violated a court order by "failing" to give her son to former partner Josh Homme
Dalle was found to have "wilfully" violated a court order by "failing" to give her son to Homme as part of an agreed custody deal
It comes after her ex-husband was called as a witness to the trial last week
The trial began on the same day a judge again denied Dalle's petition to have restraining orders filed against Homme on behalf of their sons
Judge Lawrence Riff also appointed four round-the-clock monitors who will oversee the stars’ three children when they’re with either parent
Dalle was charged with violating their custody agreement after not releasing her sons into the care of Homme early last month
The singer will be allowed FaceTime calls with his two sons, aged 5 and 10
Homme’s two sons were denied their own restraining orders against their father last week