Meryl Streep, Jean Dujardin, Octavia Spencer and Christopher Plummer, last year's Academy Award® winners, are set to return to the Oscar stage. They will be presenting awards on this year's telecast. 

Show producers, Craig Zadan and Neil Meron, said, "We are honored to have Meryl, Octavia, Christopher and Jean, last year's Oscar winners in each of the acting categories, return to the Oscar stage."

Here's the rest of the press release:

Streep, who is the most nominated actor with 17 nominations, has won three Academy Awards®, including last year's lead actress award for her performance in "The Iron Lady." Dujardin won the award for his lead performance in the Best Picture winner "The Artist," it was his first nomination. Spencer, also a first time nominee, took home the Oscar for her supporting role in Best Picture nominee "The Help." Plummer, who has twice been nominated, won the award for his supporting role in "Beginners."

Oscars for outstanding film achievements of 2012 will be presented on Oscar Sunday, February 24, at the Dolby Theatre™ at Hollywood & Highland Center®, and will be hosted by Seth MacFarlane live on the ABC Television Network. The Oscar presentation also will be televised live in more than 225 countries worldwide.