Morgan Westcott, a member of Only Boys Aloud, has spoken to ITV Wales about his experiences of cyber-bullying.
The teenage male voice choir sang the Welsh hymn Calon Lân, while fellow Welsh act Nu Sxool also won praise for their performance.
Nu Sxool and Only Boys Aloud are flying the flag for Wales in Britain's Got Talent finals on Saturday Night
Shocking figures have been released on the number of our children and young people who are being bullied online.
The information comes from the Princes Trust. They've found 14% of youngsters report being bullied online. 20% of youngsters say they've seen more bullying online than in person
39% of the youngsters have friends online who they've never met face to face.
ITV Wales has been hearing from one young victim, who's a member of the celebrated Welsh choir, Only Boys Aloud.
You can see more on tonight's edition of 'Hacio' - on S4C at 9.55pm.
The modern world of reality TV and social media has helped make a star of Morgan Westcott - a singer in choir Only Boys Aloud - but it's also made him a victim of cyber bullying.
It comes as figures released by The Prince's Trust show one in five young people have been bullied online.
You can see more on our current affairs programme 'Hacio' - on S4C at 9.55pm tonight.
A member of the Only Boys Aloud choir, Morgan Westcott, speaks out about how cyber-bullying "knocks his confidence."
The 140-strong choir, Only Boys Aloud, made it to third place in this year's Britain's Got Talent final.
Their team captain, David Mahoney, and two members from the choir, Dan Hampton and Tom Touhig joined Andrea Byrne and Jonathan Hill on the ITV Wales sofa to talk about celebrations, Olympic Games and the future of the group.
Teenage male voice choir Only Boys Aloud came third in the Britain's Got Talent final on Saturday night. After impressing audiences and judges alike, they're now considering what to do next - as Rob Osborne reports.
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Two great welsh acts on BGT tonite doing Wales proud.OnlyBoysAloud & Nu Skool. Only Boys allowed get my vote though as I love them singingFrom @Nigelrefowens on Twitter:
There are just twenty four hours of preparation left for the two Welsh acts in the final of ITV's Britain's Got Talent tomorrow night.
Only Boys Aloud were keeping tight lipped on what we can expect from them tomorrow as they put their finishing touches to their performance.
Both dance group Nu Sxool and choir Only Boys Aloud both say they think they can win!