The numerous arrests and lawsuits stacked against Katt Williams are mere child's play compared to the enormous tax lien the IRS has recently served him with.  In the year 2008, according to the IRS, Katt Williams neglected to pay $3.2 million, then in 2009 he failed to pay $829,352 which brings his total tax stresses to over $4 million.  He'll have to take this situation very seriously and straighten it out asap; otherwise severe legal repercussions could befall him.  

Hopefully he can work this out.