Rabibuum debuted alongside four masked contestants: Co Sao, Dol-la-la, Cau Tu Lanh, and Mimibu, in Group B of Ca si mat na 2026, which aired on the evening of 10/10. Appearing in a playful rabbit costume, Rabibuum introduced themselves as being on a journey to find love.

Rabibuum's performance of the song "Mot dem say" (Thinh Suy).

Initially, consultants Tran Thanh, Bich Phuong, Min, and Song Luan thought Rabibuum was a young singer due to their humorous personality. However, when Rabibuum began to sing, the character presented a completely different image. Rabibuum performed the song with a simple, narrative singing style, focusing on conveying the emotions of someone in love.

Rabibuum's experienced voice and vibrato moved Tran Thanh and Bich Phuong. According to the consultants and guest judges, Rabibuum is an artist with extensive performing experience and a long career. Tran Thanh remarked that this singer has a unique signature, "to the extent that even if they turned to ash, they would still be recognized." Tran Thanh noted that beyond the familiar characteristics of their voice, Rabibuum also showed a change in their interpretation and approach to the song, adding depth to the performance. He also expressed his wish for Rabibuum to advance to the finals.

Bich Phuong said that listening to Rabibuum's performance, she was reminded of singers who have dedicated most of their lives to music. "Rabibuum's voice can touch the audience's emotions from the very first lines," she stated.

After five performances, Rabibuum led the audience vote in the round, while Dol-la-la fell into the danger zone.

From left: Co Sao, Dol-la-la, Rabibuum, Cau Tu Lanh, Mimibu will continue to compete in upcoming rounds.

Ca si mat na is the Vietnamese version of the original format The Masked Singer (South Korea), first aired in 2022. Participating singers perform anonymously through several rounds for audience votes. The first two seasons generated buzz with many renowned singers such as Huong Lan, Ha Tran, Ngoc Anh 3A, Uyen Linh, Thuy Chi, Myra Tran, Orange, and Lam Bao Ngoc. The champions included Ngoc Mai as the character O Sen and Anh Tu as Voi Ban Don.

Tan Cao

Photos, video: Provided by the organizers.