Update: Whitney Houston Drowned, Sources Report

As reported by TMZ: 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