Rapper Flavor Flav of Public Enemy performs on day 3 of the 4th Annual Sunset Strip Music Festival on August 20, 2011 in West Hollywood, California.
Flavor Flav has a scheduling conflict between a court date in Las Vegas and his induction with the rap group Public Enemy into the Rock and Roll Hall of Fame.
The 54-year-old former rap and reality TV star is due for arraignment Thursday on felony charges that he chased and threatened his longtime girlfriend's 17-year-old son with a butcher knife during an argument.
The Hall of Fame's induction ceremony is also taking place Thursday, in Los Angeles.
Defense attorney Tony Abbatangelo has already asked a judge for a different arraignment date for his client, whose legal name is William Jonathan Drayton Jr.
Drayton faces felony assault with a weapon and child endangerment charges and a misdemeanor domestic violence battery charge.
Abbatangelo has said Drayton will plead not guilty.