Emma Willis returns to host The Voice UK for its 12th series in which unsigned singers compete to win a recording contract, a £50,000 cash prize and an all-inclusive luxury 5-star holiday to Mauritius.Coaches, will.i.am, Sir Tom Jones, Annie Marie and Olly Murs return to select ten singers to join their teams at the Blind Auditions by pushing their button for the most exciting singing talent the UK has to offer.The unsigned singers compromise f solo artists, duos, trios and for the first time groups.The singers are whittled down from ten to three at the second stage of the competition known as the "Callbacks" in which the four coaches are all assisted by famous guest mentors to help make their decisions.