OPERA singing sisters from Altrincham are set to take on the Dragons.

Claire and Tina O’Brien, who run children’s choir, Little Belters, are to feature in the new series of Dragons’ Den, airing this Sunday August 21.

The duo teach five to 11 year olds to sing in a group setting, giving a twist to classic rock anthems, current chart hits, indie anthems and contemporary folk.

They started Little Belters in Altrincham in 2011 and now have around 150 members, running classes in Cheadle Hulme, Didsbury, Sale and Chorlton.

In Sunday’s episode, Claire and Tina hope to win over the Den’s notoriously tough business magnates with a little help from their young singers.

Claire said: “We were initially very unsure about pitching in front of the dragons for investment and whilst we can’t say anything about what happened, until after the show airs on Sunday evening, both Tina and I found it to be a great experience. Most of all we’re really proud of our Little Belters who truly melted everyone’s hearts.”

Tina studied at the Royal Northern College of Music before joining Glyndebourne as a trained opera singer, performing at the last night of the Proms. Claire studied music at Hull University and then sang across the UK, Europe and the USA with highly respected chamber choir, the Joyful Company of Singers.

Tina added: “We started off simply wanting to provide a high quality group for local children where we train them to be great singers and confident performers. We have a strict no audition policy so any child that loves to sing can join. Little Belters has grown quicker than we ever expected so when the chance to pitch for the dragons came our way we thought, why not.

“We’re not your average choir - we take on things that people would never expect children to sing like Arctic Monkeys, Kaiser Chiefs and we have recorded with European House DJs. We certainly like a challenge and after teaching a room full of 5-11 year olds every week we weren’t too scared of Deborah, Peter, Nick, Sarah & Touker.”

You can watch Little Belters on BBC2, 9pm.