HALCALI is a female hip-hop duo, produced by members of the hip-hop band Rip Slyme. The group's music can be best described as festive hip-hop, mixed with pop, resulting in very catchy songs. The promotional videos and live concerts of the two girls are characterized by unique choreography, and often the videos have a funny edge to them.
Their name is a combination of the members' names, Haruka and Yukari: Harukari or HALCALI.