"Whistle" is a song by American rapper Flo Rida from his fourth album Wild Ones (2012). It was released on April 24, 2012 as the third single from the album. "Whistle" was written by Flo Rida, David Glass, Marcus Killian, Justin Franks, Breyan Isaac and Antonio Mobley while production was handled by DJ Frank E and Glass. It is a song about oral sex.

"Whistle" is a pop-rap song characterized by a whistling melody. Upon its release, the song received mostly mixed reviews from music critics. They generally praised its pop sound, noting that it had the potential of becoming another hit with its "catchy" hook. However, several critics gave a negative review for the lyrics, interpreted as a thinly veiled euphemism for oral sex, calling it "the least subtle song ever". The song peaked at number one on the Billboard Hot 100, becoming Flo Rida's third number one hit and his first since 2009's "Right Round". "Whistle" was a commercial success, topping the charts in some countries, including Australia, Israel and Sweden, and peaked within the top ten of the charts in others, including Denmark, the Netherlands, Spain and the United Kingdom.

An accompanying music video for the song, directed by Marc Klasfeld, was released on May 24, 2012. It was filmed in Acapulco, Mexico and makes use of split screen at various points. It mostly shows shots of Flo Rida and several girls on a beach. Upon its release, it received positive to mixed reviews from critics, who noted that it was a perfect accompaniment for the song. Flo Rida also promoted the song by performing it during the finale of the talent show, The Voice. This song is the second track on Now 44. The cover image of the single also drew praise for its subtlety and originality.

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