The AKB48 Request Hour Setlist Best 100 2009 (AKB48 リクエストアワー セットリストベスト100 2009) was held from January 18 to January 21, 2009 at Shibuya AX. Fans made their voices heard by voting for their favorite AKB48/SKE48 original songs.
Boku no Taiyou is AKB48's Himawarigumi 1st Stage (Himawarigumi 1).
