After sitting through his 15-year-old accuser's testimony yesterday, Michael Jackson was an hour and 40 minutes late for court today. The judge threatened the King of Pop with arrest if he didn't show up. Representives for Jacko say that he's suffering a "serious back problem," and when he arrived he looked disheveled and needed walking assitance from his bodyguards. Perhaps the sudden ailment was brought about by stress after listening to the boy allege that Jackson showed him Internet porn (once pointing to a woman's breasts and joking, "Got milk?"), gave him phony digits and pretended he wasn't home when he really was.