All for One & One for All! is the first (and only) mini album by Hello! Project unit H.P. All Stars, released on December 1, 2004 in both a normal and limited edition, the limited edition having a different cover. It reached a peak of #5 on the daily Oricon charts, lasting 7 weeks. The concept behind the song was to show the fans appreciation and celebrate Hello! Project's seventh anniversary, whilst sending a message of peace.