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I was a prisoner at home after sex tape -- Tulisa

Tulisa Contostavlos has revealed she was so distraught after a sex tape of her appeared online she slept on the floor for a week.

The X Factor judge and N-Dubz star (right) took legal action after footage surfaced of her sharing an "intimate moment" with former boyfriend Justin Edwards, who denies posting the clip.

Contostavlos (23) said she was "devastated" by the tape's release and became a prisoner in her home.

She said: "I slept on the bathroom floor for seven days... I just wouldn't go out of the house. Couldn't sleep. Didn't really want to eat anything.

"But I snapped out of it. I knew what I was doing. I knew in my head that I was depressed; I knew why I was depressed. It was all logical. I didn't want to smile. I didn't want to be happy. I needed to have my tears and tantrums, my bad moods, and get myself into a state to come back out of it."