Singer Susan Boyle recently recorded a very special 'duet' with the late Elvis Presley on his version of Christmas carol 'O Come All Ye Faithful' and revealed that she sensed him around during the studio sessions.

She will release the song on December 8 and it will also feature on her upcoming album, entitled 'Home For Christmas', but explained that she feels his "presence" when she performs the track:

"I do sometimes feel his presence when I sing the song. I think he would be excited if he heard it and he liked it. Duetting with Elvis was beyond my wildest dreams."

Technology was able to put the two stars' voices together and proceeds raised from sales of the single are set to be donated to the Save The Children charity. Boyle added that she had to contact Priscilla Presley in order to get permission for the unusual collaboration:

"My dad and my whole family were Elvis fans and she gave me permission."