"Beep!!" is a song by Japanese musical act Superfly. It was released as a double A-side single along with "Sunshine Sunshine" in 2011, and was used as the theme song for the Hiroshi Shinagawa film Manzai Gang (2011).

In March 2010, Superfly released Wildflower & Cover Songs: Complete Best 'Track 3', a two-CD set featuring a four-track single and a full-length cover album of classic rock songs. It was led by the song "Wildflower", the theme song for the drama Gold, and also featured "Tamashii Revolution", a song used to promote the NHK broadcast of the 2010 FIFA World Cup. Both songs were commercially successful, with "Wildflower" becoming certified Platinum for downloads by the Recording Industry Association of Japan, and "Tamashii Revolution" certified platinum twice. This was followed by "Eyes on Me", a ballad single released in December used as the theme song for the Square Enix shooting game The 3rd Birthday.

"Beep!!" was written before "Sunshine Sunshine". Director Hiroshi Shinagawa wanted a Superfly song similar to the "high-paced feel" of "Alright!!" (2009) for the theme song for his film Manzai Gang (2011), so asked Ochi to write the theme song. Ochi was inspired to write about feelings of change after reading the script for the film and meeting with Shinagawa. Conceptually, the song was recorded with the style of American rock band The Knack as a basis. Ochi wrote the lyrics together with musician Jam. At the time Ochi had wanted to write tender love songs such as "Eyes on Me", so had trouble mentally creating the lyrics. Together they wrote the song from the perspective of a big-sister like character, much like the lyrics of Superfly's song "Manifesto".

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