Who is Young Thug's Fiancée? Meet Mariah the Scientist and Their Surprise Concert Engagement!

Young Thug and Mariah the Scientist's Journey to Engagement

Young Thug, known professionally as Jeffery Williams, proposed to his girlfriend, Mariah the Scientist, on December 16. The proposal took place during his Hometown Hero benefit concert in Atlanta, where fans captured the moment and shared it across social media.

The couple has been together since October 2021, when they began dating after a professional connection turned into a personal relationship. Their journey has not been without challenges, including Young Thug’s arrest in May 2022 on charges related to conspiracy to violate the RICO Act and criminal street gang activity. Despite this, Mariah stood by him throughout the legal process, and their relationship continued to grow.

In December 2025, after more than four years of dating, Young Thug proposed to Mariah, marking a significant milestone in their relationship. The proposal was a heartfelt moment that resonated with fans and followers, showcasing the depth of their bond.

Who is Mariah the Scientist?

Mariah the Scientist, born Mariah Amani Buckles, originally pursued a career in biology before transitioning to music. She attended St. John’s University in Queens, N.Y., where she studied biology with the aspiration of becoming a pediatric anesthesiologist. However, her passion for music led her to drop out during her third year to pursue a full-time career in the industry.

Her scientific background has influenced her music, which she incorporates into her artist name and lyrics. Mariah described her approach to songwriting as combining what she learned in school with her personal experiences, creating a unique blend of storytelling and emotion.

A Unique Start in Music

Mariah’s first song was a “diss song” for a guy in college, which she wrote while at St. John’s University. The track, which she later uploaded to SoundCloud, eventually caught the attention of RCA Records. Since then, she has released four albums and one EP, collaborated with rappers like 21 Savage and Vory, and performed at major festivals such as Rolling Loud and Summerfest.

Meeting Young Thug

Mariah met Young Thug in March 2021 when she reached out to him online to wish him a happy birthday. Initially, he didn’t see her message, but he later replied asking if she was signed. This initial interaction led to a professional connection that eventually turned into a romantic relationship.

They started dating in October 2021, after Mariah waited six months to ensure she wasn’t rushing into the relationship. Their first date took place at a restaurant called Arnettes in Sandy Springs, Ga.

Collaborations and Challenges

Since they began dating, Mariah and Young Thug have released several songs together, including "Walked In" in July 2021 and "Ride" in October 2023. They also worked on the album To Be Eaten Alive, which includes a song called "From a Woman." Young Thug released a complementary track titled "From a Man" while awaiting trial.

During Young Thug’s arrest in May 2022, Mariah faced the challenge of being apart from her then-boyfriend. She admitted to being emotional and struggling with the distance, but their bond remained strong. Despite obstacles, including a system outage that prevented virtual visitation on their three-year anniversary, they stayed closely connected.

A Momentous Proposal

On December 16, 2025, Young Thug proposed to Mariah during his Hometown Hero benefit concert in Atlanta. As he dropped to one knee before her, the words “Will You Marry Me?” lit up the screen behind him. When he asked her, she responded, “I guess I’m getting married.” The moment was a testament to their enduring love and commitment.