The 4-time Grammy award winner couldn't help but praise the American reality TV star's spider-inspired jumpsuit at the 2015 Brit Awards held in London on February 25.
The 'Stay With Me' hit-maker, who received his award for 'British Breakthrough Act' from the American reality TV star, admitted:
"I think Kim Kardashian's outfit was the best thing I've seen in my life."
The 34-year-old channeled a 90s alter ego when she stepped out in a sexy Julien MacDonald mesh bodysuit, which offered a generous look at her cleavage.
Kim also went for a black choker to set off her all-black outfit and not detract from her eye-catching open neckline.
Meanwhile, Sam had to admit he was stunned by his international success but thoroughly enjoys travelling around the world as part of his job despite being jet lagged most of the time.
Smith also won four Grammy awards this year!