Did Blac Chyna, Rob Kardashian take the 'mannequin challenge' too far?
01:37While Blac Chyna was at the hospital to deliver her new baby, Dream, she joined husband Rob Kardashian and members of his family in the “mannequin challenge” right in the delivery room. Al Roker looks dubious, but Jordin Sparks says she likes the video and that peoples’ reactions will depend on their concepts of privacy.