While promoting his new water product called AQUAhydrate with Mark Wahlberg on Friday's "Ellen DeGeneres Show," Diddy revealed a deep, dark secret from his past: "I used to be a bed wetter." Apparently, the rapper-mogul drank a ton of sugar-filled Kool-Aid as a kid and "there's something about sugar that makes you wet the bed." Mark Wahlberg joked that Diddy "didn't even know what water was" as a kid.