The "Wild" star took to Instagram to share an epic #ThrowbackThursday photo, where she's sporting a floor-length jean jacket, 80's hair and a sassy frown.
"Thinking about rocking this pose on the red carpet on Sunday. Whatdya think???!! #SeriousDenimVibes #SidePonytail #WOW #TBT really this time," she captioned the classic snapshot.
The 38-year-old actress, who nabbed a Best Actress nomination this year, will definitely be one to watch on the red carpet.
Her stylist, Leslie Fremar, tells ABC News that Reese's look is "going to be pretty show-stopping."
With the blonde beauty's amazing figure, we thought this Oscar de la Renta gown would really show off her sexy curves. Plus, Reese always looks gorgeous in color -- remember Elle Woods' bright style?
Check out more of our Oscars fashion predictions above, and come back to toofab on Sunday to see all the stars on the red carpet at the Academy Awards!