Mel GibsonIn an explosive new audio tape, Mel Gibson is allegedly caught calling his ex-girlfriend, Oksana Grigorieva, several obscenities, adding that she dressed too sexy and would get "raped by a pack of n***ers," RadarOnline.com has learned exclusively. On the tape, Gibson also calls Grigorieva lewd names, including "whore" and "c**t," and threats to burn her house down. For more details about the tape, go to RadarOnline.com

In the wake of news reports about the incident, HollywoodLife.com is reporting that child services is planning to investigate the case as well. "The Department of Children and Family Services is absolutely going to look into this," an DCFS insider says.