The peach (Prunus persica) is a deciduous tree native to the region of Northwest China between the Tarim Basin and the north slopes of the Kunlun Shan mountains, where it was first domesticated and cultivated. It bears an edible juicy fruit called a peach or a nectarine.

"Peach/Heart" is Ai Otsuka's 15th (16th overall) single released under the avex trax label. It was released on 25 July 2007 and was her second (third) single to be released in 2007.