Janet Jackson was left stunned when her boyfriend Jermaine Dupri vomited in her lap at his birthday party.

The "Feedback" singer had been helping her beau celebrate turning 36 at New York nightclub Tenjune, where they drank Patron tequila and Jay-Z's Ace of Spades Champagne with pals including Ne-Yo, Busta Rhymes and Ice-T.

Kelly Rowland spent almost $400,000 on a night out.

The former Destiny's Child singer racked up a $372,680 bar bill on guests - including U2 frontman Bono - at Amika's Weekend Takeover in St. Tropez, France, on Friday.