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It's over even before it begins. Bobbi Kristina Brown, daughter of late Whitney Houston and Bobby Brown, has dropped out of Celebrity Big Brother at the eleventh hour after being attacked online following the announcement that she would be staying in the house, reports The Sun.

A source at CBS told the paper, "They knew there were guaranteed fireworks with her in the house and hoped they'd also get some revelations about Whitney. But she did a massive U-turn and sent the bosses into a panic. As it stands they've got loads of money to spend but they're struggling to find anyone to give it to."

Whitney Houston's only daughter has been shocking fans left and right. Last month the 20-year-old announced her engagement to Nick Gordon. Isn't that sweet?! Not so much, since Bobbi and Nick were both raised by Whitney which, according to critics, essentially makes the twosome siblings.

Bobbi Kristina took to her Facebook to combat critics: "YES, we me nick are engaged [sic]. I’m tired of hearing people say 'eww your engaged to your brother or if Whitney was still alive would we be together or would she approve of this.' Let me clear up something, we aren’t even real brother and sister nor is he my adoptive brother. My mom never adopted him. In fact, mommy was the one who even said that she knew that we were going to start dating. My mom knows me better than any of you."

Whatever you say BK, we're still creeped out.

Amazingly enough Bobbi Kristina was one of Celebrity Big Brother's biggest names and now there are reports that the network is scrambling to find a replacement in time to begin shooting. The other names attached to the show are "Return of the Mack" singer star Mark Morrison and Saved by the Bell's Dustin Diamond. This is certainly event TV if we've ever heard of it! With an all-star cast like that -- who could possibly resist tuning in?!