Moms-to-Be Who've Dared to Bare!

From Kelly Rowland and Christina Aguilera to Shakira and Jessica Simpson, see which stars have stripped down to belly basics

DOUTZEN KROES

On Feb. 6, the model mama made quite the pregnancy announcement on Instagram. To tell fans she's expecting her second child with husband Sunnery James, Kroes posted a revealing bump shot with the caption: "This is not a #throwbackthursday this is now! So happy to share with you that we are expecting." The parents of son Phyllon, 3, welcomed a daughter, Myllena Mae, on July 30.