Emme and her twin Max celebrated their first birthdays in February and Lopez reveals she and husband Marc Anthony are starting to notice familiar personality traits in both of them, reported contactmusic.com.
"We call her Emme-tude because we're like, 'She's giving us Emme-tude right now'," said Lopez.
"She gets that from her dad. I'm kidding - she gets it from me," she added.
But Lopez insists little Max is most like his mother, adding: "Me and Marc are always claiming he's got my head and he's got my mouth."