Chantelle is putting her newfound celebrity to good use.
She's backing an anti-bullying campaign.
The Celebrity Big Brother winner joined schoolkids by City Hall to launch Bullywatch London, by releasing white balloons across the River Thames.
The bubbly model who won our hearts on the reality TV show has admitted suffering her own bullying ordeal when at school in Essex.
She said: "I was bullied when I was in school and I wish that someone would've said, 'Hang on, that's not acceptable,' and it would've stopped."
She added: "No-one really knew about it but it got to the point where I didn't really go to school much. I would dread going to school.
"My advice to anyone being bullied is to tell someone, even if it's your friend, or tell your parents or a teacher."
The campaign is backed by the charity Beatbullying and the Major of London.
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