JERMAINE Dupri had quite the 36th birthday. The other night, Dupri and his boo Janet Jackson, partied it up at Tenjune, where they drank and shared bottles of Jay-Z’s Ace of Spades Champagne and Patrón tequila with friends Ne-Yo, Busta Rhymes and Ice-T. Seems as if Dupri went overboard.   Insiders at Tejune snitched to the New York Post saying he:

“vomited in Janet’s lap. Ms. Jackson bolted out of the scene and sped off in her chauffeured Maybach.”

A rep for Jackson and Dupri didn’t return calls. A rep for Tenjune declined to comment.

Maybe he’s stressed out? He is the head of urban music for Island/Def Jam and he did put out Janet’s last album, “Discipline,” which tanked. New York Post’s insider said:

“[IDJ head] L.A. Reid had wanted to make changes to the album, make it fresher with some newer artists added in, but Janet said no - and Jermaine backed her up. He looks silly right now.”

If I were Janet, I’d be kicking his rude a** out of my life. Puking in my lap is a deal breaker!