Beyonce Knowles

Beyoncé performing. Photo: Janet Mayer, Splash News

Do you remember when nobody you knew would admit to being into shapewear? Well things have changed and Hollywood A-Listers just may have something to do with it. There are those who flaunt it and others who prefer to be more discreet, but there is no denying that it has helped many women feel more confident in their own body.

Some celebs do not choose to come out of the closet on their own, but are simply "outted" during unfortunate public wardrobe malfunctions, like Bethenny Frankel at the Red Dress Collection fashion show.

From Beyoncé performing to Kim Kardashian on the streets of New York City, check out the stars in all of their Spanx glory -- confirming that even they are not flawless.

If you're not donning your own Spanx and girdling up under a fabulous dress for one of the biggest ceremonial events of the century, you can still check out all the action on our Royal Wedding site.