Do you envy celebs' perfectly white teeth? When you hear Jessica Simpson's confession, you might not be so jealous. "I don't brush my teeth," she tells iheartradio. "No, really! I just use Listerine -- and sometimes I'll use my sweater." Ew! "I do brush every now and again, but my teeth are extremely powerful. Fine, maybe when I'm 60 I'll be all 'Ow!'" We thought we were past Jess' "chicken of the sea" crazy comment days...