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Help raise money for Heart's new charity Make Some Noise by joining Wales' Biggest Choir, supported by Brace's Bread.
Our Make Some Noise Day will raise money for children and disadvantaged young people like those helped by Noah's Ark Children's Hospital in South Wales.
As part of a very special moment in the day we're putting together Wales' Biggest Choir. So if you sing in one, we'd love you to be part of it, helping us Make Some Noise to raise much needed cash for worthy causes in Wales and across the UK.
It's taking place at 11am outside the Millennium Centre in Cardiff Bay.
If you'd like to get involved, fill in your details below and we'll call you back for a chat.
Wales' Biggest Choir is supported by Brace's Bread.