The actor, who was widely tipped to finally get his hands on the Best Actor accolade for his role in ‘The Revenant’, was all smiles on the red carpet ahead of his big night.
The star looked (almost) totally relaxed, before heading into the awards bash, striking a pose with Kate, who looked delighted to accompany the actor into the event.
Ahead of the event, many fans thought Leo would hit the red carpet with his mum, who he dedicated his Baftas win to earlier this month.
“This woman drove me three hours a day to a different school to show me a different opportunity. It’s her birthday today. Mom, happy birthday. I love you very much.”
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Kate Winslet, shared her delight at his nomination ahead of the Oscars ceremony, and when asked whether she'd be boycotting due to #OscarsSoWhite row, stated she couldn't possibly miss her pal's big moment.
See all the snaps from the red carpet below...