"Wildflower" is a song by Japanese musical act Superfly. Used as the theme song for the drama Gold, it was released as a single on September 1, 2010. The single release was packaged as "Wildflower" & Cover Songs: Complete Best 'Track 3', a four-song extended play featuring a cover album as a bonus disc.

In September 2009, Superfly released the act's second studio album Box Emotions, their second release in a row to reach number one on Oricon's album chart. This was followed by a single, "Dancing on the Fire", Superfly's second upbeat dance song to be used in commercials for Canon's Digital IXUS range of cameras.

On June 18, Superfly released the song "Tamashii Revolution", a song used as the theme song of the NHK broadcast of the 2010 FIFA World Cup, played during relay clips and highlight shows. It became one of Superfly's biggest commercial successes, eventually becoming certified platinum twice by the RIAJ.

"Wildflower" was first announced as being the theme song for the drama Gold on June 15. It was the second drama starring Yūki Amami, after "My Best of My Life" was used for Boss in 2009. Ochi wrote the lyrics for the song after reading the script for the drama, and was inspired by the stoic story-line and language. Ochi wrote the song about wildflowers, wanting to create a song that reflected the feeling of wanting to live earnestly and strongly.

The single's jacket features vocalist Shiho Ochi holding a different object representing each song on the single: a dahlia flower for "Wildflower", a djembe drum for "Tamashii Revolution", a globe for "Free Planet" and on the back cover a rainbow for "Roll Over the Rainbow".

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