Reality TV star Susan Boyle is to release a charity Christmas single featuring the voice of Elvis Presley.<br/> <br />The digital duet will see Boyle dreaming the seemingly impossible dream of duetting with the King of rock n'roll on a version of 'O Come, All Ye Faithful'.<br/> <br />SOUNDBITE, Susan Boyle, saying (English):<br/> <br />"I worked with an original recording and also Sony Records had a liaison with Priscilla Presley herself to get permission."<br/> <br />Boyle also revealed she had been appointed as an ambassador for the charity Save the Children, and the royalties from her single will go to support its work.<br/> <br />In this role, she spent time with children at a Save the Children program which is run at a primary school in Glasgow.<br/> <br />SOUNDBITE, Susan Boyle, saying (English):<br/> <br />"I think they responded really well. I get on great with kids, I am big kid at heart really, you know. I get on great with them."<br/> <br />And what of Boyle herself? How does she feel to be the centre of attentio
