Mika Nakashima is a Japanese singer and actress. Five of her studio albums, one of her mini-albums and one of her compilation albums have reached number one in Japan's Oricon album chart. She also embarked on an acting career, most notably as Nana Osaki in the live action film adaptations of Nana. She has sold over 10 million records in Japan.

Nana is a Japanese manga series written and illustrated by Ai Yazawa. It was serialized in the monthly shōjo manga magazine Cookie from May 2000 to May 2009 before going on hiatus. The series centers on Nana Osaki and Nana Komatsu, two women who move to Tokyo at the age of 20, with the story focused on Nana O.'s pursuit for fame and Nana K.'s pursuit for romance, all while struggling to maintain their friendship.