Whitney HoustonWhitney Houston has reportedly checked herself into rehab in an effort to beat her drug addiction.

According to her sister-in-law Tina Brown, Whitney didn’t tell husband Bobby Brown about her plans.

“At first he thought she was just off on another drug binge,” Tina told the Daily Mirror.

“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.”