The 'My Love is Your Love' hitmaker was pronounced dead by paramedics at the Beverly Hilton Hotel at 3.55pm yesterday (11.02.12) after she was unresponsive to attempts at reviving her.
A reason for her death has not yet been given, and her body was identified by family and friends, TMZ.com reports.
Whitney was staying at the hotel ahead of a planned performance at Clive Davies' pre-Grammy party - which took place last night - and she was seen partying and drinking with friends on Friday night (10.02.12).