Event organisers said it would show the "resistance" to the ban on the group was "stronger than ever".
Nine points clear with six games to play - could Arsenal still really blow the Premier League title from that position?
The festival in California was also forced to cancel a set by DJ Anyma on Friday because of strong winds.
England open title defence with comfortable win over Ireland in front of a record Women's Six Nations crowd of 77,120 at Allianz Stadium.