SANTA MARIA, Calif. (Reuters) - Superstar Michael Jackson turned up on crutches in a California courtroom on Tuesday after a close encounter with a spider. Jackson, whose bizarre appearance and baby-dangling antics have made headlines around the world for the past three weeks, was resuming testimony in a $21 million lawsuit over canceled millennium concerts. But it was the self-styled King of Pop himself, dressed up in a white satin vest and tie, who again provided most of the drama. Explaining the crutches and the white athletic sock he was wearing on one foot, Jackson told reporters; "It is a...