Olympic fever is gripping the nation once more this summer as Team GB hopefuls are competing for the same glory in Rio that was felt during the London 2012 games.

In celebration of the lasting legacy of the athletics competition four years ago, a charity single called Champion is being released by the Pandemonium Drummers, who performed in the industrial revolution section of Danny Boyle's opening ceremony.

The drumming group teamed up with Felix Buxton, a member of the electronic band Basement Jaxx and the song also features vocals from American singer-songwriter Brendan Reilly and British songstress Vula Malinga, plus Melissa Cavanagh from The Voice.

The track is raising money for the Teenage Cancer Trust and is also dedicated to the late Stephen Sutton MBE, who performed with the drummers at Wembley Stadium in May 2013, which fulfilled a bucket list goal, and made headlines around the world after raising millions for the charity before he sadly lost his battle with cancer at the age of 19.

Helen Isaacs, from Watford, is a member of the Pandemonium Drummers, which is made up of a thousand volunteers of ages and backgrounds. Since the 2012 Olympics, they have performed are more than 150 events, including the FA Cup, Champions League and Heineken Cup Finals, as well as endless festivals, charity and community events across the country.

The 53-year-old explains why she believes Champion is an anthem of unity and spreads a message of hope and positivity to people from all walks of life.

She says: "It symbolises everything the Olympics is about. It is one of the places where it doesn't matter what country you're from or who you're there to support, as everyone supports everyone else.

"It is just such a lovely feeling of unity and celebrating fantastic achievements from the sporting point of view and although each individual sport has its own world championships, I don't think anything quite beats the Olympic atmosphere.

"We wanted to write a song that captured the feelings that we had during that time in the Olympics as we felt privileged to be part of that unity and the song celebrates the champion in all of us, as some of the volunteers were overcoming difficulties themselves but everyone joined together for the ceremony."

Helen admits she can't put into words how in awe she felt to part of the opening ceremony in London, particularly as she is a huge fan of the Olympics and has been to the last six host nations to watch the games, including Barcelona, Atlanta, Sydney, Athens, Beijing, London and now Rio will be her seventh.

Not wanting to miss out on a once in a lifetime opportunity to be involved in the opening ceremony in her home country, she applied to take part and was selected after attending a couple of auditions, despite not being able to play the drums.

She explains: "When I auditioned, I was told I might be doing some drumming, but I didn't really know what that would entail and just focused on being part of that amazing representation of London and Britain.

"During my second audition, they split us into groups of people who could drum and people who couldn't and I had never drummed, so thought I would be thrown out at that stage. Fortunately, there were quite a lot of people who had never drummed before either and they had us tapping out rhythms on our chest or hands and moving in time with music, with plastic buckets on strings around our necks and some drumsticks.

"I was thinking I didn't stand a chance but in January 2012 I got an email saying I had been accepted so I was delighted."

Helen's passion for the Olympics began when she was nine-years-old and watched Mary Peters win gold for women's pentathlon in the 1972 Munich games.

Now an adult and working as a merchandiser for Waitrose, she still feels inspired by the message of hope the Olympics spreads and hopes to keep spreading that feeling with the Pandemonium Drummers.

She says: "We were the beating heart of the ceremony in 2012 and we want to continue celebrating the peace and unity everyone felt during that special time in the Olympics four years ago."

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