Nick Cannon isn't down with Diddy and Steve Harvey's stepdaughter Lori Harvey being a couple.

The 49-year-old and the 22-year-old were first spotted together at a reggae concert in Miami. They were also seen wearing matching outfits and on vacation in Italy with Harvey's family and stepfather Steve Harvey.

Cannon, who married a 38-year-old Mariah Carey when he was 27 — said if Lori was his daughter he'd have a big problem with the relationship. Lori also happened to date Puff's son Justin Combs, which been causing plenty of chatter on social media.

"Twenty-two and 49. Aw, man! I don't have a problem with that, but I would be heartbroken if that was my own daughter," said Cannon on VladTV. "To each his own. But I would feel like I failed as a father if I'm sitting across the table with a dude the same age as me that's dating my daughter. I would feel like I failed."

What do you think about Diddy and Harvey possibly being an item?