From The Washington Post's gossip column:

When Celine Dion wants a facial, does she go to Rodeo Drive? Hardly. We hear that the silver-throated diva, in the middle of her grueling 200-night-a-year gig at Caesars Palace, recently flew Washington "aesthetician " Jacqueline Boucher, of the downtown salon Celadon, to Vegas to give her a two-hour treatment.

I guess this is only really funny if you dislike Celine and know the alternate meaning of the term "facial." That said, the joke is kinda ruined by the fact that the one administering the facial was a woman.