Houston, she's got a problem

GRAMMY-WINNING singer Whitney Houston has entered a drug rehabilitation facility, her publicist said yesterday.

Whitney "thanks everyone for their support and prayers," publicist Nancy Seltzer said in a statement in Los Angeles, but declined to offer any further details.

It's the latest in a series of setbacks for the star. Didn't she almost have it all? Over 100 million albums sales, hit films and a global appeal.