The X Factor: Nicole Scherzinger is left speechless when she's unexpectedly gets caught off guard

Following a performance from Emily Middlemas, the star didn't realise that her act had to perform next.Staring into the camera, Nicole made everyone aware that she wasn't prepared before she regained her composure to welcome Matt on the stage."Oh my gosh, I didn't realise it was me and my face right now," she said slowly."He wants this more than anything and I believe in him. Please give it up for Matt Terry!"Nicole Scherzinger caught off guard on The X Factor: Nicole ...