"Wild" is Namie Amuro's 34th solo single under the Avex Trax label. It was released in CD and CD&DVD formats on March 18, 2009, about one year since her previous single "60s 70s 80s", and nearly eight months after her successful compilation album Best Fiction. Dr. marks her first fully animated music video and the song was featured in a Vidal Sassoon CM, while Wild was used in a Coca-Cola Zero commercial. The "Wild" music video drew comparisons to Janet Jackson's "Feedback" video, inspired by its galactic theme, setting, and choreography.
"Wild/Dr." is Amuro's eleventh number one single and her second consecutive number one single since 2008's "60s 70s 80s". The single has been certified Gold for shipment of 100,000 copies.