Raising kids is a struggle, something even celebrity moms know all too well. And in today's world, mommy-shaming is something that comes from every direction. Well, mainly from complete strangers on Instagram or Twitter whose opinions don't really matter, right? But sometimes, stars really give us no choice but to sit here scratching our heads, wondering "WTF?" in regards to their more unusual parenting styles. From Christina Aguilera to Katie Holmes, they've all admitted to super unique and — dare we say — rather weird parenting methods when it comes to raising their kids. And it's raising a lot of eyebrows, too.

Click through the gallery to see which famous moms have some rather strange parenting habits.