Eight musicians will be adding a classical twist to Cancer Research UK's Race for Life later this month.
The group from All Women Orchestra and Choir are giving up their time and performing to support this year's races in Norwich.
They have volunteered to perform on the side of the course to give participants a boost as they make their way around the routes.
It will be the first time that a string quartet and horn quartet have been located at cheering stations around the course.
The musicians say they will treat runners to uplifting music to keep them motivated and energised.
The kind-hearted musicians will also be fund-raising for Cancer Research UK later this year on June 10, when they put on a concert that will see a 180-strong, all-woman orchestra and choir perform film soundtracks with a classical twist at St Andrews Hall in the city.
Chrissie Owens, a musician in the group, said: 'We're looking forward to playing our part at Race for Life this year.
'Classical music can be very uplifting and shouldn't be limited to formal settings.
'We enjoy taking our music to new audiences and always hope they will be surprised by what they hear and come back for a repeat performance.
'Many of us have loved ones who have been affected by cancer and so we wanted to give something back and support a brilliant cause by volunteering and fund-raising.
'We hope our story inspires other people to get out and help at the Race for Life events, or to come along to our concert which will raise money for vital cancer research.'
When the choir performs at St Andrews Hall on June 10, it will be a first for Norfolk as everyone from conductor to choir will be female.
As the final countdown starts to the 5k, 10k and Pretty Muddy events on May 12 and 13 at the Norfolk Showground, the musicians are calling on people to follow their lead and join them as volunteers.
To volunteer at this year's race for life, visit raceforlife.org and for tickets to the concert, visit www.ticketsource.co.uk/women
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