Suffice it to say, Mann is the biggest cheerleader for both her daughters, imparting her own wisdom when applicable. "I've always told Maude, Iris, and all of their friends to leave their eyebrows alone," Mann says, adding that she's still rehabbing her long love affair with the tweezers. And while some 20-somethings might shrug off their mom's advice — or worse, do the exact opposite — Apatow admits she was definitely smart to listen on this one. "Oh yeah, I'm so glad I never over-plucked my brows," she says.