Liam Neeson, Salma Hayek, Melissa McCarthy and John Travolta will present at the Oscars.
The actors - who have all received nominations at the Academy Awards in the past - have been added to the line-up for the Oscars telecast this Sunday, producers Neil Meron and Craig Zadan confirmed.
'Taken' star Liam picked up a Best Actor nomination for 1993's 'Schindler's List', and although he didn't win, the Steven Spielberg film swept the 1994 Oscars with seven wins including Best Picture, Best Director and Best Adapted Screenplay.
Salma earned a Best Actress nomination for her portrayal of Mexican artist Frida Kahlo in 2002's 'Frida', but lost out to Nicole Kidman, who won for her role as another historical figure, Virginia Woolf, in 'The Hours'.
Meanwhile, Melissa received a Best Supporting Actress nod last year for her breakout role in Paul Feig-directed comedy, 'Bridesmaids'.
Finally, John is a two-time Best Actor nominee for 'Saturday Night Fever' and Quentin Tarantino's cult classic, 'Pulp Fiction'.
The stars will join a growing list of Hollywood elite who are set to take the stage at the ceremony, including Meryl Streep, Ben Affleck, Jessica Chastain, Jennifer Lawrence, Channing Tatum, the cast of 2002 musical 'Chicago', and the cast of 2012's 'The Avengers'.
Performances at the bash will come from 'Skyfall' hitmaker Adele, Dame Shirley Bassey, Barbra Streisand and Norah Jones.
'Ted' director Seth MacFarlane will host the telecast which take place from the Dolby Theatre in Hollywood.