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Too much fabulousness in one place! Brooklyn's Barclays Center was overflowing with star power on Thursday, Dec. 19, when Madonna hit up Beyonce's Mrs. Carter show with her 8-year-old daughter, Mercy James. The Queen of Pop paid tribute to her fellow music royalty via Instagram, with a photo of Queen Bey onstage in her iconic purple sequined jumpsuit.

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"Mrs. Carter crushes the BK with her bad ass show!" the Material Girl, 55, captioned the pic. "Girls run the world!"

The "Turn Up the Radio" singer also shared a snapshot of her daughter Mercy getting some personal attention from the "Flawless" star mid-concert. "Mercy James gets a big fat one from the Queen B!" she wrote alongside the photo, which shows Bey leaning down to plant a kiss on the youngster's forehead.

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(Madonna has four kids; in addition to Mercy, she's mom to daughter Lourdes and sons Rocco and David Banda.)

Beyonce has just a few shows left on the 2013 leg of her Mrs. Carter World Tour. Last week, she shocked fans by releasing a surprise "visual album" via iTunes, with 14 new songs and 17 accompanying music videos.

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"I see music. It's more than just what I hear," the 32-year-old superstar said in a mini-doc about the album, posted to her Facebook page shortly after the LP hit Apple's iTunes store. "When I'm connected to something, I immediately see a visual or a series of images that are tied to a feeling or an emotion -- a memory from my childhood, thoughts about life, my dreams or my fantasies. And they're all connected to the music."


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