Christina Milian ecigarette meeting boots short shorts

All the celebs are in to e cigarettes these days! Christina Milian lunched at Clafoutis in West Hollywood on Wednesday -- and she couldn't help but puff on an e cigarette during the business meeting.

Wearing an oversized white sweater, jean short shorts and furry boots, the singer lunched with friends while meeting with actor Oskar Rivera to promote Platinum E Hookah.

Other celebs who have been hitting the e cigarettes are Katherine Heigl, Katy Perry, Lindsay Lohan, John Cusack, Jack Nicholson, Leonardo DiCaprio and so many more!