Houston's daughter warned bodyguard: 'Keep an eye on my mum'

Whitney Houston's daughter warned her to "slow down" the night before she died.

Bobbi Kristina - the My Love is Your Love singer's only daughter from her marriage to Bobby Brown - tried to convince her mother to not party so hard on Friday, February 10 at the Tru Hollywood nightclub, less than 24 hours before Whitney was found dead in her bathtub at the Beverley Hilton hotel.

A source told National Enquirer magazine: "Whitney's bodyguard would try to grab a drink out of her hand, and she'd spin around and laugh, 'Just one more.'

"Bobbi Kristina told her to slow down, and even took Whitney's bodyguard aside and said, 'Keep an eye on my mum.'

"About an hour later, Whitney was out on her balcony screaming, 'I'm tired of this s**t, I'm tired of this s**t!

"Hotel security had been called to her room twice and she was ranting and raving about being harassed."

Whitney was less frantic on the Saturday, and reportedly took Xanax to calm her down before she got ready to attend her mentor Clive Davis' pre-Grammy party that night.

The music icon - who is believed to have passed away after taking a lethal cocktail of prescription drugs and alcohol - was with minders, including her personal bodyguard Ray, in her room before she was found dead in the bathtub at 3pm.

A hotel source said: "A staff member went into the bathroom and found Whitney slumped in the tub, her head in the water with her arm dangling out of the tub and her knees flexed upward.

"One of the bodyguards ran in and pulled Whitney out of the tub."

Emergency services were called to the scene and paramedics attempted to revive the tragic star, but she was pronounced dead at 3.55pm.

The I Will Always Love You singer was buried in her home state New Jersey on Sunday. She was 48 when she died.

- BANG! Showbiz