The former Pop Idol winner appeared on Strictly Come Dancing last year but quit for 'personal reasons'.
Will's now set to make his comeback on the new singing contest, which will air on Saturday nights on BBC One this summer and feature a number of all star judges.
The BBC has confirmed that superstar singer Kelis and the nation’s favourite choir master Gareth Malone will be permanent judges on the show, while Mel Giedroyc will host.
Gareth and Kelis will be joined by a different third judge each week. These are: multi-award winning singer songwriter Seal, DNCE lead vocalist and performer Joe Jonas, Queen of Funk Chaka Khan, American singer/songwriter Bebe Rexha and Brit Award-winning singer Will Young.
The brand new series will see rival musical groups facing-off against each other. Each week, host Mel will be welcoming singing groups from across the land to the stage where they will compete head-to-head over a series of choral challenges including Pitch Perfect inspired riff offs, a soloists challenge and an a capella round.
Mel said: “I am soooo excited to be presenting this new show and PB will definitely be bringing some cracking music into people’s living rooms every Saturday! Not only are we going to be joined by some brilliant groups and megastar judges each week but to top it all off my old mucker the original twisted choir starter Gareth Malone will be there too. What a combo!”
Gareth added: "I'm thrilled and excited to be part of this fantastic new show. There's a wealth of singing talent in this country and I'm delighted to bring that to BBC One. To me this is about finding extraordinary groups who have the skill and personality to light up our screens.''
And Kelis commented: “It’s kind of nice when things come full circle. I started singing in the choir as a child so it’s always been something special to me. Now here I am 20 years later as a judge on Pitch Battle.”
All of this, alongside Pitch Perfect’s Music Director and Arranger Deke Sharon, will ensure that Pitch Battle brings a unique blend of sass, swagger and a pinch of mischief to summer Saturdays on BBC One.