The funniest part of Kate Hudson's appearance on Letterman last night was Dave's insistence on talking about Kate's relationship with NY Yankee Alex Rodriguez. He just wouldn't let Kate change the subject. (Also: Note Dave's mimicking of Kate's fake laugh.)

As he mentioned, Dave's been telling jokes about Kate and A-Rod ever since it came out that they were dating, so Kate had to know he would railroad her when she came on the show (to promote Nine.) One moment in particular demonstrated how quick Dave is on his feet:

Kate: "Can't we talk about the holidays? Let's talk about Christmas."
Dave, cutting in: "Let's talk about Thanksgiving: did Alex come to your house for Thanksgiving?"