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Justin Timberlake performed a surprise concert in Las Vegas this week at the opening of the Fontainebleau Hotel.

The black-tie crowd included celebrities like Kim Kardashian, Kendall Jenner, Tom Brady, Keith Urban, and Sylvester Stallone. Timberlake didn’t mention the highly-publicized accusations Britney Spears made about him in her recent memoir, but he did say “no disrespect” before performing “Cry Me A River.”

Spears accused him of portraying her as “a harlot who’d broken the heart of America’s golden boy” in the music video, saying: “I felt like I had been exploited [and] set up in front of the whole world.”

Timberlake’s show was the first at the Fontainebleau’s BleauLive Theater; Post Malone is booked for two concerts at the end of December. The Fontainebleau is now the tallest building in Nevada.