Recurring Guest Characters Guest Judge 1 guest appearances Guest Judge 1 guest appearances Guest Judge 1 guest appearances Guest Judge 1 guest appearances Guest Judge 1 guest appearances Guest Judge 1 guest appearances Seal 1 guest appearances Chaka Khan 1 guest appearances Bebe Rexha 1 guest appearances Nick Jonas 1 guest appearances Will Young 1 guest appearances Jermaine Jackson 1 guest appearances Rita Ora 1 guest appearances