23/10/2012 14:08 BST

'X Factor' Final Could Feature A Performance From Cher And The Killers

Cher could be making a star appearance on this year's 'X Factor' final, according to reports.

The 'Turn Back Time' singer, 66, has apparently been signed up - along with Las Vegas rockers The Killers - by show creator Simon Cowell after she tweeted her support for contestant Ella Henderson.

An insider told the Daily Mirror: "It's an 'X Factor' tradition to get great names for the final and Simon was determined to pull out all the stops. Fans won't be disappointed.

"Cher is a legend and The Killers are massive. Everyone's thrilled. There's something for all musical tastes."

Cher tweeted followers after watching Ella's stunning first audition performance of her track Believe: "Went on YouTube to see young girl sing Believe! Tears came to my eyes! So touching! A great version of a great song. We can share it!"

X Factor Finalists