Lucky2 (ラッキーラッキー; pronounced as "Lucky Lucky") is an eight-member Japanese girl group who provide the opening and ending themes for Bittomo x Heroine Kirameki Powers!. They consisted of two members from lovely2 as well as the four main leads in Kirameki Powers, forming a six-member group. The three members from RizSta -Top of Artists!- were added to the group in February of the following year. The group had nine members until leader Yura Sugiura's graduation on March 31, 2025, bringing the group to eight members instead.