Whitney Houston Found Underwater

Whitney Houston was found in the bathtub of a Beverly Hills hotel yesterday ... with her face underwater ... people close to Whitney tell TMZ.

According to our sources, her stylist, hairdresser and two bodyguards were among the people in the room at the time. We're told they became worried about Whitney because she had been in the bathroom for over an hour and it was time to start getting ready for the Clive Davis party.

Our sources say they began to knock on the door and there was no answer. We're told the hairdresser, who is female, went in to check on Whitney. She immediately screamed and, according to our sources, one of the bodyguards came running in and pulled her out of the tub.

We're told Whitney's face was below the water and her legs were up ... like she had slid down the back of the tub.

According to our sources, her body was very cold and the bodyguard attempted CPR. That's when hotel security was called.

Paramedics arrived shortly thereafter, but Whitney was pronounced dead at 3:55 PM.