Delano Student Pursues Her Dream on NBC’s “The Voice”

For 15-year-old Delano student Koumba Diallo, balancing academic achievement with big-stage talent has become second nature. Diallo won first place overall at KCSOS’ 2025 Henry Greve Speech Contest and was named a 2025 STEAM Olympiad winner with her team in the Chalk Talk competition. Outside of academic competitions, she has performed at community events and major venues, including USC Women’s Volleyball games and LA Clippers basketball games at Crypto.com Arena.

As her performance experience grew, auditioning for a nationally televised singing competition became a natural next step. Diallo had considered shows such as “The Voice,” “America’s Got Talent,” and “American Idol” for a while. Her vocal teachers watched “The Voice,” and people often encouraged her to audition, but Diallo had her own plan.

“I just wanted to wait a little bit and improve first before I did anything big like that,” Diallo said. “I felt like I was ready.”

Diallo’s musical journey began at age 8, when she decided she wanted to sing while competing in Tiny Tots pageants. Her mother asked her to prove she could sing before entering a new category, and Diallo surprised everyone with her vocal talent. Since then, her skills have continued to grow, taking her to some of the industry’s most famous stages.

“When I started performing at bigger venues, such as NBA venues, I got more recognition, bigger crowds, and there were more people there who told me, ‘You’re very talented and you can go somewhere with this,’” Diallo recalled.

Diallo began her journey on “The Voice” with a televised—and viral—performance of Demi Lovato’s “Stone Cold,” which earned a four-chair turn, meaning all four celebrity coaches pressed their red buttons to turn their chairs around and watch her perform. All four coaches—singers Adam Levine, Kelly Clarkson, Queen Latifah, and Riley Green—wanted to mentor her. Diallo chose Team Kelly, accepting mentorship from pop singer Kelly Clarkson for the remainder of the show.

Every televised singing competition is filled with emotional moments, from contestants seeing their dreams come true to facing elimination under the pressure of a national audience. But Diallo has her own perspective on winning.

“Honestly, I’m a very competitive person, and I think an important factor to success is losing, being able to recognize that you’ve lost, recognize why you lost, what you can do to improve, and things such as that,” she explained.

Despite the national spotlight, Diallo remains grounded in her everyday life. Her family and community have always supported her, she said, and the love she receives from “The Voice” fans makes her happy as well.

Away from the cameras and performances around the state, she remains a dedicated honors student. She credits time management for helping her balance school and singing, an approach her school commends.

“Even with the spotlight on her, Koumba has quietly gone about her schoolwork with complete grace, continuing to earn straight A’s and setting a phenomenal example for so many young students in the community,” shared the principal at Diallo’s school.

Balancing her two worlds has given Diallo a unique high school experience.

“It’s pretty interesting to me because I can see myself on TV, but I’m also in class doing my Algebra Two test,” Diallo said.

“You never know until you try. So, dream big. The sky’s the limit unless you limit yourself.”

– Koumba Diallo

“The Voice” episodes are filmed in advance and broadcast later. Season 30 began filming in June 2026. The final rounds have traditionally aired live, but the show’s format changed last season, when the live shows and finale were filmed in advance. Whether Season 30 will follow the same structure remains to be seen.

Diallo’s next round on “The Voice” will start Monday, November 2, when Cut Week begins. Cut Week introduces a new competition format that eliminates the “Knockout” and “Playoff” rounds used in previous seasons. Each celebrity coach will have seven competitors on their team, and only two will advance directly to the Live Shows. The remaining five contestants will compete for one spot per team, making Cut Week a major elimination round.

Despite the pressure of being on television, Diallo’s experience has strengthened the self-confidence she first developed at age 8.

“People tend to underestimate themselves a lot, and they tend to put themselves down,” she acknowledged. “But you never know until you try. So, dream big. The sky’s the limit unless you limit yourself.”

Watch Diallo on “The Voice” Mondays at 8 PM ET/PT on NBC. Peacock subscribers can stream “The Voice” episodes the day after they air on NBC.