Brandy (WENN.COM)

Singer Brandy has sworn never to reveal what Whitney Houston wrote in a note she gave her during a TV interview in the days before her death.

The R&B star and actress was shooting a promotional piece with Monica and music mogul Clive Davis for a U.S. network when her friend and mentor burst in and insisted on handing Brandy a note with a curt, "It's for you".

The singer glanced at the piece of paper and then seemed a little worried as she handed it to an assistant. The entire sequence of events was caught on camera, but Brandy has never revealed what Whitney wrote - and never will.

She tells news show Access Hollywood Live, "People don't know and I wanna keep it that way. That was her personal message to me."

Brandy insists even her brother Ray J, who was dating Houston at the time of her death, doesn't know what was in the note.