Westminster Council have said they are checking but it is unlikely that they would have given permission for the drummers to perform in Soho on Saturday evening. The council is responsible for enforcing noise limits in the area.
"Helen Mirren did a fantastic job of enforcement for us."
More top news
The Hollywood star took residents in Merton by surprise when he touched down in a helicopter near Poplar Road.
His shock decision to pull out of the Tory leadership contest came at the end of a speech where he appeared to set out his credentials.
The two newborn Sumatran tigers who are yet to open their eyes were born at London Zoo on Monday.