Huddersfield X-Factor star Carolynne Poole is to back a massive charity effort.

The singer has been invited to headline at a big rugby league event which has attracted legends of the sport.

She will be singing to the crowd before the Joining Jack Legends play a select team in a curtain raiser to the Big One 5 when Wigan Warriors face Super League rivals Leeds Rhinos at the DW Stadium in Wigan on September 5.

Star players set to play include Jason Robinson, Henry Paul, Kris Radlinski, Mick Cassidy, Andy Johnson, Gary Connolly, Paul Sculthorpe, Sean Long and Chris Joynt.

The game forms part of a top night of entertainment with Starsailor’s James Walsh and the New York Brass Band joining singer-song writer Carolynne.

She was a star of The X Factor, booted off in controversial circumstances.

The 33-year-old singer starred in the hit TV series in 2012 under the mentorship of Gary Barlow.

The singer was voted off in the live shows of the TV talent series in scenes which promoted a fierce row between judges Barlow and Louis Walsh.

But since then she has continued performing around the country and has been in demand.

Carolynne is a rugby fan and was at Wembley to see her favourite team, Leeds Rhinos, win the Challenge Cup withj victory over Castleford.

She tweeted: “15,000 tickets already been sold!! You can still get yours at www.wiganwarriors.com Looking forward to performing & supporting @joiningjack”

The Joining Jack charity was set up to help the young son of former Wigan player Andy Johnson.

Jack, 6, suffers from Duchenne Muscular Dystrophy and the charity is aiming to find a treatment.

It is a cause backed by many sports stars and has become familiar through the “joining Jack” salute performed by many of them.