The Weeknd
Instead of wearing his concert attire, the "Earned It" crooner keeps it extra professional with a blazer and matching dress pants.
Lady Gaga
Straight off of wowing audiences at the Super Bowl, the Best Original Song nominee wows in a Christian Siriano dress.
Jennifer Lawrence
The Joy actress says no to dresses but yes to a beautiful black pantsuit for Monday's event.
Matt Damon
The Martian star attends the star-studded luncheon just three weeks before the big show.
Sylvester Stallone
After winning a Golden Globe for his performance in Creed, the actor may be receiving another big trophy by the end of the month.
Saoirse Ronan
The Brooklyn Best Actress nominee keeps it cool with her red carpet style.
Hannah Bagshawe & Eddie Redmayne
Hot couple alert! The Danish Girl star and his wife make a beautiful pair at the prestigious event.
Mark Ruffalo
The actor looks handsome as ever in his suit and tie while supporting his film Spotlight.
Rooney Mara
The actress stays true to her modern style in a white, floral shirt.
Brie Larson
Pretty in pink! All eyes are on the Best Actress nominee after her role in Room.
Jacob Tremblay
Although he's not Oscar nominated, the nine-year-old deserves plenty of praise for his performance in Room.
NEXT GALLERY: Oscars 2016 Notable Nominees

