Hello! Project Shirogumi (白組; White Group) was one of two groups Hello! Project was split into for the Hello! Project 2005 Winter ~A HAPPY NEW POWER!~ concert tour. A DVD of Shirogumi's concert was released as a fanclub-exclusive.
Shirogumi performed at the same venues as the Akagumi, but alternated shows. At the end of each concert, Morning Musume from Akagumi would make an appearance, and then all of Akagumi would join Shirogumi on stage and they would perform together as H.P. All Stars.