We have contracted with the girl group NiziU as a tie-in for the Fit's series, which celebrated its 12th year on the market in 2020 undergoing a major renewal. The commercial, the first for the Fit's series in about five years, features a NiziU version of the Fit's Dance. Fit's NiziU Collaboration Gum and Fit's NiziU Cube Bottle Gum, in which the members participated in flavor selection, were also marketed as new flavors inspired by the rainbow to tie back to the group's name (Niji = rainbow in Japanese).