Joe Jonas, Selena Gomez, And Jack Black Embarrass Nick Jonas On Live Radio

From reading thirsty tweets to “interning” for James Corden, Nick Jonas will do pretty much anything as far as wacky interviews and promotional stunts are concerned. So it’s no surprise that he agreed to undergo BBC Radio 1’s ruthless Heart Rate Monitor Challenge, a revealing test where BBC Radio host Nick “Grimmy” Grimshaw slips on a lab coat and presents guests with clips and pictures carefully designed to make their heart rates rise.

Grimmy doesn’t pull any punches, as Jonas’ first trial arrives in the form of a video clip from his older brother and former bandmate, Joe Jonas. Joe coyly alludes to Nick’s sexual encounter with a woman who liked to use the term “momma,” and Nick’s heart rate immediately surges. Long story short, the younger Jonas took the woman’s attempts at seduction way too literally.

Next up, a blast from Jonas’ past. Grimmy plays Jonas a short clip of Miley Cyrus’ “7 Things,” a song that many believe is about Jonas himself. Jonas essentially confirms the theory and points out that, in the “7 Things” music video, Cyrus is actually wearing a dog tag that he gave her. But he doesn’t seem bothered by it—in fact, he says he was flattered by the attention and his heart rate barely rises above 70 beats per minute.

Grimmy has better luck with a clip from another one of Jonas’ exes, Selena Gomez. Gomez reminds Jonas about a decade-old date that went horribly wrong, and Jonas explains that he and his older brother—who was dating Taylor Swift at the time—essentially abandoned their girlfriends by walking several feet ahead of them as they strolled through Central Park. Jonas claims that he and his brother were trying to keep their respective relationships as private as possible, but who were they kidding? If someone spots two attractive, eligible young celebrities in proximity of one another, they’re going to draw conclusions no matter what.

Finally, Jack Black—Jonas’ Jumanji: Welcome to the Jungle co-star and supposed medical expert—pops up from behind a white curtain to present one last test. And it’s a good one—after Black tells him that Game of Thrones’ Emilia Clarke wants him to “ride the dragon,” Jonas’ heart rate rises to a whopping 105 beats per minute. Believe it or not, Jonas has been a long-time fan of Clarke’s and low-key admitted to being her Instagram stalker when the two of them appeared on Grimmy’s radio show together in 2016. And who knows? Now that his brother is engaged to fellow GoT star Sophie Turner, maybe Jonas and Clarke will be able to get to know each other better.

You can check out the entire Heart Rate Monitor Challenge below.