Nick Cannon would never allow Justin Bieber to babysit his children.

Nick and his wife singer Mariah Carey welcomed their twins Moroccan Scott and Monroe into the family this April.

Mariah and Justin have recently collaborated on a music promo for the festive song All I Want For Christmas Is You.

Although everyone bonded on set, Nick is not keen on Justin looking after his children should the occasion ever arise.

"Oh hell no [would I ever let him baby-sit]!" Nick told Life & Style at Skyy's Sexy Holiday Soiree in Los Angeles Thursday.

Nick may not be receptive to Justin's childcare abilities, but he is a fan of the young man in general. He would love for Justin to spend time with Mariah and the family in the future.

"Justin didn't meet our kids because Mariah didn't bring them to the set of the video," Nick recalled. "But I think he will eventually."

Mariah and Justin's video debuted on November 30. Some critics lambasted the work, saying that Justin and Mariah looked too sexual together on tape.

Nick believes those opinions are not applicable.

"It wasn't scandalous. I loved it, and I'm so proud of her."

Justin's Christmas album Under the Mistletoe is currently in stores.