(Photo: Getty Images (Beyonce and Jay-Z), Melissa Hom (costumes))

Pregnant Beyoncé and Jay-Z
The world basically stopped turning when music’s power couple announced that a mini Bey-Jay was on the way. For Jay-Z’s look, keep it simple with a white T-shirt and his go-to Yankees hat. To get the full Beyoncé glow, pick a sparkly sequin number, add a baby bump (a regular pillow will do the trick), and top it off with a diva-worthy accessory, like a big faux fur. For extra points (or a midnight snack), pack some of Beyoncé’s oddball pregnancy cravings, like bananas with ketchup, to nibble on throughout the night.

Beyoncé: Sparkle dress, $88, and faux fur coat, $125, Screaming Mimi's; Pillow, Ikea, $3.99.
Jay-Z: White T-shirt, American Apparel, $21; Jeans, Forever 21, $21.90; Yankees hat, Modell’s, $17.99; Aviators, Screaming Mimi's, $60