The 30-piece Young Guns Choir provided backing vocals for finalists Joe McElderry and Danyl Johnson on Saturday as well as performing the X-Factor charity single You Are Not Alone on Sunday.
The Choir also features on the official recording of the charity singe, which hits shops today and is expected to reach number one.
"53% of British TV viewers were watching the show this weekend so it is great exposure for our talented up-and-coming artists," said Young Guns head of marketing Emma Eriksson.
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