New Kids On The Block, TLC And Nelly Tour Opener At Mandalay Bay In Las Vegas [Getty Images]

LAS VEGAS, NV - MAY 01: Recording artists Tionne "T-Boz" Watkins (L) and Rozonda "Chilli" Thomas of TLC perform during the kickoff of The Main Event tour at the Mandalay Bay Events Center on May 1, 2015 in Las Vegas, Nevada. (Photo by Ethan Miller/Getty Images)

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