Looks like it's a cover-up!
Of course, each diva gives this look her own personal spin...
Carrie Underwood is a sky-colored dream in Gomez-Gracia, Adele goes classic in a black Giorgio Armani dress, and Katy Perry matches her hair to her blue Elie Saab gown. Taylor Swift looks sweet in a rose Zuhair Murad confection while Fergie keeps it edgy in a sheer orange Jean Paul Gaultier—with black undergarments, natch.
So who rocks this high-neckline trend best? Sound off in the comments!