Natsu no Hydrangea

 (夏のハイドレンジア; Summer Hydrangea) is the 21st single by Sexy Zone. It. The single's title track is a summer love song written by Hata Motohiro and was featured as theme song for Fuji TV's drama She Was Pretty, starring Nakajima Kento and Koshiba Fuka. The physical release comes in three versions: two limited CD+DVD editions (A & B), and a regular edition.

Regular Edition CD

 * 1) Natsu no Hydrangea (夏のハイドレンジア; Summer Hydrangea)
 * 2) Prism
 * 3) Heat
 * 4) Natsu no Hydrangea -Inst-
 * 5) Prism -Inst-
 * 6) Heat -Inst-

Limited Edition A CD

 * 1) Natsu no Hydrangea (夏のハイドレンジア)
 * 2) Never lie to me
 * 3) Never lie to me -Inst-

Limited Edition A DVD

 * 1) "Natsu no Hydrangea" Music Video
 * 2) Making of "Natsu no Hydrangea"

Limited Edition B CD

 * 1) Natsu no Hydrangea (夏のハイドレンジア)
 * 2) Momoiro no Zettai Ryouiki (桃色の絶対領域)
 * 3) Momoiro no Zettai Ryouiki -Inst-

Limited Edition B DVD

 * Special Event "Sexy Zone Best Holiday! Sexy Camp Edition"