Howard Stern weighed in on the debut of ‘Newlyweds’ during his show this morning and asked “Who is Jessica Simpson exactly?” He said he’s seen pictures of her all over the place and he’s not sure who she is. Co-host Robin Quivers said she’s like a modern-day Leif Garrett in the way she’s just everywhere but you don’t know why. Howard brought her up yesterday and talked about a scene in her new reality TV show where she doesn’t know if she’s eating tuna or chicken because it says Chicken of the Sea on the package. Howard then played a clip where Jessica is talking about it with her husband Nick Lachey of 98 Degrees. Howard predicted that if that’s the way they live, there’s no way the marriage is going to last. He said Nick won’t want her raising his kids if she’s that dumb. He concluded that when Jessica’s looks fade, Nick will probably be out of there.