WATCH: You'll go Gaga for this Oscars highlight reel.
The 2019 Oscars brought several surprises and amazing moments.
Greg Williams, the Academy of Motion Picture Arts and Sciences' official photographer for the 2019 Oscars, captured some of the most talked-about pairs and jaw-dropping scenes during the star-studded event.
From Lady Gaga and Bradley Cooper's backstage embrace to Olivia Colman clutching her Oscar after her best actress win, here are the behind-the-scenes shots that you have to see.
Regina King, Samuel L. Jackson and Angela Bassett
Pharrell Williams and his wife, Helen Lasichanh
Lady Gaga and Bradley Cooper
Emma Stone and Allison Janney
Rami Malek and Lucy Boynton
Melissa McCarthy, Sam Rockwell and Leslie Bibb
Daniel Craig and Rachel Weisz
Jason Momoa and Jimmy Chin
Amy Adams and her husband Darren Le Gallo
Adam Driver and his wife, Joanne Tucker