Both stars are nominated for their performances in Quentin Tarantino's ninth film Once Upon a Time…in Hollywood. DiCaprio is in the running in the Outstanding Performance by a Male Actor in a Leading Role in a Motion Picture category while Pitt is up in the Outstanding Performance by a Male Actor in a Supporting Role in a Motion Picture group. They're also included in the film's Outstanding Performance by a Cast in a Motion Picture nod.
This marks DiCaprio's 11th SAG Awards nomination and Pitt's ninth. The 45-year-old actor took home the trophy in 2016 for his lead role in The Revenant while the 56-year-old actor received recognition with the rest of the Inglourious Basterds cast in 2010.
Of course, the two A-listers have spent decades working on their craft.
To see a few photos from their '90s days, check out the gallery.