Lewis Hamilton, you're not as sneaky as you think you are! On Instagram Monday, you might've seen the new video featuring Kim Kardashian and her sisters Khloé Kardashian and Kylie Jenner. They're all giggles as they try to do the TikTok "Titanic challenge". If you haven't heard about the challenge, it's basically where you lie on the floor while your partner grabs your hands, and you attempt to flip over while balancing on their thighs and hips. It was named after the scene in Titanic where they're "flying" at the end of the ship - it's a new viral trend the KarJenners just had to get in on! But as HIGHlarious as the video is, fans couldn't help but notice a very familiar laugh in the background - and they're certain it's Kimberly's new beau! The F1 star's distinct laugh and him yelling "push away, push away!" was caught on camera by the ladies, and fans immediately went WILD! Even if he didn't show his face, they knew he was there hanging out. Related: Kim's Romance With Lewis Could Lead To Massive Heartbreak See the video (below): View this post on Instagram A post shared by Kim Kardashian (@kimkardashian) Some wrote on social media: "pfft i'd recognise that voice and laugh anywhere" "Yeah that's lewis laughing" "YEP that's his voice!!" "omg lewis what" "well we know where he went after the super bowl" "MAN BARCELONA TESTING STARTS TODAY WHAT ARE YOU DOING" Did U hear Lewis' voice - or was that someone else? Thoughts? [Image via Kim Kardashian/Kylie Jenner/Instagram/Jimmy Kimmel Live/Call Her Daddy/YouTube] The post That's Definitely Lewis Hamilton In The New Kim Kardashian & Kylie Jenner Video -- WATCH! appeared first on Perez Hilton.