Contestants Eoghan Quigg, Alexandra Burke or JLS will release a cover of Leonard Cohen song 'Hallelujah', but Buckley fans are drumming up support for his 1994 interpretation.
A Facebook group has been launched urging fans to help the Buckley track, which is currently at number 43 in the charts, reach number one by purchasing it online.
The group's description reads: "This is not a group intended to make cruel or derogatry remarks about any participants in this year's X Factor.
"But if you love Buckley's version, let's make sure everyone forgets the pale imitation as quickly as possible."
Buckley drowned in a tributary of the Mississippi River in 1996.