What contestant from Britain's Got Talent was a guest vocalist on Johnny Mathis Christmas album titled Sending you a little Christmas?
Susan Boyle Susan Magdalane Boyle (born 1 April 1961) is a Scottish singer who came to international attention when she appeared as a contestant on the TV programme "Britain's Got Talent" on 11 April 2009, singing "I Dreamed a Dream" from "Les Misérables ".
Saška Janković Aleksandra Janković (Serbian: Александра Јанковић ; born 29 April 1988), professionally known as Sashka Janx (Serbian: Сашка Јанкс) and Miss Jukebox, is a Serbian singer-songwriter. She was previously a backing vocalist for numerous other artists, including Milan Stanković at the Eurovision Song Contest 2010 and Nina Radojičić at the Eurovision Song Contest 2011. In 2012, Janković participated in "Prvi glas Srbije", a musical talent show similar to "The Voice".