HALCALI is a duo consisting of HALCA and YUCALI. The two have been very close friends since elementary school through the same dance school, winning a female rapper audition in 2002 before making their CD debut in January 2003 with the single “Tandem.”

In 2025, “Otsukare SUMMER” became a major hit overseas. Despite originally being released in 2003, the song has surpassed 7 billion plays on TikTok and continues to gain streams around the world.
In 2026, HALCALI reunited through an appearance on “THE FIRST TAKE,” where their performance of “Otsukare SUMMER” drew major attention.
The song was also nominated for the “Best Viral Song” award at MUSIC AWARDS JAPAN 2026, attracting renewed attention in Japan as well.
Furthermore, the duo is set to perform at SUMMER SONIC 2026 on August 16, marking their first live stage appearance in 14 years and becoming a major topic of conversation.

The name “HALCALI” is a combination of the two names “HALCA” and “YUCALI,” and the group is fully produced by O.T.F (Oshare Track Factory), consisting of RYO-Z and DJ FUMIYA of RIP SLYME.