Houston goes back into rehab

Whitney Houston has gone into rehab for the second time.

The diva has already tried - and failed - to kick a crack cocaine habit in 2005.

Sister-in-law Tina Brown says husband Bobby Brown had no idea Houston had gone into treatment again.

“At first he thought she was just off on another drug binge," she reported. "It took a few days to find out from Whitney's family that they had talked her into rehab. All Bobby told me is that she is in treatment, in a secluded place. She can still be the singer the world adored. I pray to God she’ll get herself clean for good.”