Timothée Chalamet has found a unique way to show his affection for his high-profile girlfriend, Kylie Jenner—by giving her a shout-out on a rap track.

The 29-year-old actor has stirred intrigue with his appearance on a new release from the mysterious U.K. rapper, EsDeeKid. This collaboration has once again sparked rumors suggesting that Chalamet might be the enigmatic artist behind the mask. In a nod to Jenner’s financial success, the Marty Supreme star raps, “my girl got a billion,” clearly referencing the wealth amassed by the Kylie Cosmetics founder.

Kylie Jenner, now 28, burst onto the business scene in 2015 when she launched Kylie Cosmetics, initially offering a line of lip liners and liquid lipsticks. By the age of 22, Jenner had made headlines for selling a majority stake of her company to Coty, in a deal that valued the brand at nearly $1.2 billion. Chalamet and Jenner’s romantic involvement first came to light in 2023.

On the track, which was unveiled on December 19 in a joint Instagram post by EsDeeKid, Chalamet raps with enthusiasm, “Girl got a billion, what the f—? with a wonderful feeling head to the ceiling, hit to the, since 2017, I’m living a dream getting the cream, I’m living on, I’m doing my thing, Marty Supreme, Marty Supreme, Marty Supreme.”

Theories regarding Chalamet’s potential alter ego as EsDeeKid have circulated since early 2025. Fans speculate due to the rapper’s hidden identity, the resemblance in their eyes, and Chalamet’s well-documented passion for hip-hop and rap music.

The theory picked up steam in August 2025 when Chalamet attended a London show hosted by Fakemink, an artist featured on EsDeeKid’s track “LV Sandals.”

Leading up to the collaboration, Chalamet was asked directly whether EsDeeKid was his alter ego during a December 11 appearance on Heart Breakfast. He refused to give a straight answer.

“I got no comment on that. No, I mean, I got no comment.”

As the hosts continued pressing him — pointing out everything from their similar eyes to the fact that both had been photographed wearing the same skull scarf — Chalamet continued to dodge.

“I’ve got two words on that,” he said, pausing before breaking into a mischievous smile. “Two words: All will be revealed in due time. That was a little more than two words.”

The rap verse arrives just one week ahead of Chalamet’s latest film, Marty Supreme, distributed by A24, hitting theaters on December 25.