Kendall Jenner and Hailey Baldwin appeared on James Corden’s new season of Carpool Karaoke and dished some major secrets about their current love lives and ex-boyfriends. In the new clip. Kendall surprises Hailey with a lie detector test. Scroll below to find out their secrets.

Watch for all the details!

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After being hooked up to the polygraph Kendall starts off with the lighthearted question of, “Do you like my hair like this?” She asked as it was pulled at in a high pony with a noticeable middle part. Hailey said yes and passed.

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The next question Kendall asked was loaded with drama, “Does Justin Bieber think I’m cool?” Hailey nodded heavily, “Of course!”

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As it turned out, her answer was a lie and her fiancé Justin is not a fan of Kendall. The engaged couple has had a rocky relationship ever since Selena Gomez entered a mental health treatment facility and the disapproval of her BFF only adds fuel to their fire.

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Hailey then asked the very pointed question, “Have you ever created a fake Instagram to check out what your ex is doing?”

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Kendall screamed in response, “You know the answer to this! YES!” It turns out Kendall has been making catfish accounts for her lists of exes that include Harry Styles, A$AP Rocky, Blake Griffin, and Jordan Clarkson.

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The model still officially follows all of her ex-boyfriends on Instagram so maybe it’s she created the fake profiles to watch their Instagram Stories and like their photos.

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Who do you think Kendall stalks the most? Sound off in the comments!