The couple, who began dating in early 2023, were spotted laughing in the crowd together, after Timothee posed solo on the red carpet.
Kylie, 27, showed off her jaw-dropping figure in a plunging black gown, and accessorised with silver jewellery.
He layered the long-sleeved, button-up shirt over a bright green tank top and added a silver-toned chain.
The Kylie Cosmetics founder and Hollywood hunk have only been pictured together a handful of times since publicly launching their relationship in late 2023.
To complement the novel hairstyle, he wore an equally eye-catching outfit that included a lime green shirt with an abstract floral pattern throughout.
