Less than a week after the glitz and glamour of the Golden Globes, Hollywood's finest will attend the Screen Actors Guild Awards on January 23. Newly named as presenters at Saturday's soiree are Justin Timberlake, Anna Kendrick, Sigourney Weaver, and latest It Girl Carey Mulligan. The stars will join previously announced presenters, including Alec Baldwin, George Clooney and Meryl Streep. A highlight of the show will surely be Golden Girls' Betty White receiving the Screen Actors Guild Life Achievement Award from recent Golden Globe winner Sandra Bullock. Catch the SAG Awards live on TNT and TBS.