Nick Cannon took to Instagram to wish well his ex-wife, pop star Mariah Carey, and her new fiance, Australian billionaire James Packer.

Packer reportedly gave Carey a 35-caret diamond engagement ring when he proposed after less than a year of dating her.

"Ha! This made me laugh out loud for real!!! HILARIOUS!" Cannon captioned a photo of him sleeping in a hospital bed with Kevin Hart looking down on him. The image also said, "It's just a ring Nick."

The message continued: " #AllLove Congrats to @MariahCarey and James! May God Bless Your Future Union... #GreatPeople #GreatCouple."

Carey and the "America's Got Talent" host wed in 2008 and are the parents of 4-year-old twins, a daughter Marilyn and son Moroccan.

They announced in 2014 they had split up and divorced last year.