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

From Kim Kardashian West and Christina Aguilera to Shakira and Jessica Simpson, see which stars have stripped down to belly basics

JESSICA SIMPSON

Not only did the mom-to-be reveal it all on the cover of Elle's April 2012 issue, but she also confirmed she was expecting a girl with fiancé Eric Johnson. "I swear, I will croak if she asks me for a pair of Nikes instead of Christian Louboutins!" Simpson joked of daughter Maxwell.