Oscar winners Russell Crowe, Jennifer Hudson and Catherine Zeta-Jones will perform at the Academy Awards in a tribute to the resurgence of big-screen musicals, organisers said.
The performance, which will also feature Oscar nominees Anne Hathaway and Hugh Jackman from Les Miserables, is part of the several musical acts at the annual Hollywood awards on Sunday.
R&B singer Hudson won a Best Supporting Actress Oscar in 2007 for her role in Dreamgirls and Zeta-Jones won the same award for Chicago in 2003.
Crowe, who stars in Les Mis, won an Oscar for Best Actor in 2001 for his role in the Roman drama Gladiator.
Les Mis scored eight Oscar nominations, including Best Picture and Best Original Song. Les Mis actors Amanda Seyfried, Helena Bonham Carter, Eddie Redmayne, Aaron Tveit and Samantha Banks will also join the musical tribute.
Singers Adele, Shirley Bassey, Norah Jones and Barbara Streisand will also perform at the awards show.
Adele is nominated for an Oscar for her song Skyfall in the James Bond film of the same name, and Jones will perform Oscar-nominated song Everybody Needs a Best Friend from Ted.