The cancer charity Tenovus is launching its 70th birthday fundraising campaign in Cardiff today.
The 'Big Singalong' will aim to get people involved through singing and music. Last year the 'Sing with Us' choir project was launched to help hundreds of people affected by cancer.
So far seven choirs have been set up with a further nine due to launch this year.
Tenor Wynne Evans, who lost his father to cancer last year, is the new patron and ambassador for the charity. He will be at the launch today.
For more health stories from ITV Cymru Wales click here.
More top news
Plaid Cymru holds a meeting for staff to air their concerns about failed pre-election talks with the Liberal Democrat and Greens
The Severn bridges could be under government ownership as early as 2017 says a Welsh MP resulting in cuts in toll charges.
Gravitational waves were hypothesised by Albert Einstein a century ago.