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On Friday, Beyoncé took the stage at the newly opened Revel Hotel in Atlantic City, N.J., as ecstatic fans looked on. According to USA Today, the evening's performance was the first from the "Crazy in Love" star since giving birth to her first child, daughter Blue Ivy, in January. Husband Jay-Z was in attendance and tweeted, "I'm gonna say this and then I'm gonna end mine. BEYONCE is the best performer in the world. Period."

From USA Today:  

The singer was all business — that is to say, warm and gracious, glamorous and relentless. Backed by an all-female band and a tireless posse of dancers and backup vocalists, Beyonce reasserted her unique pop persona; she was at once angel and seductress, cool diva and woman of the people.

She first appeared (after an opening set by the operatic R&B belter Luke James) in silhouette, a large screen hanging over the stage tracing her trim curves. For the first batch of songs — among them a feisty End of Time, a retro-soulful Love on Top and a giddy Crazy In Love— she wore a cropped, spangled top and micro-mini skirt. Several costumes followed, naturally — all showing plenty of leg, some offering a peak at the new mom's taut tummy.

Read more at USA Today.