The 34-year-old father of two, who split from wife Maria Carey, is said to be dating model Jessica White, reported E! Online.
"If you were wondering..." he captioned the photo of a quote regarding what it means to be single.
The full message reads, "Being single doesn't mean that you know nothing about love. Sometimes, being solo is wiser than being in a false relationship."
He posted another quote having to do with people who are mature versus immature.
"Immature people always want to win arguments even at the cost of a relationship. Mature ones prefer losing an argument just to uphold a golden relationship," Cannon said.