The group will either sing numbers like "Can You Hear The People Sing?" or "One Day More" or participate in a medley of "Les Miserables" tracks, like "I Dreamed a Dream" and "On My Own", reported the Huffington Post.
The details are still being finalised in order to fit in with other performances at the Academy Awards ceremony next month, with a number of options being discussed.
"Les Miserables" is one of the year's expected Oscar favorites and it has received eight nominations, including one for Best Picture.
The 85th annual Academy Awards will take place on February 24.
