"Celebrate" is a song by British singer and songwriter Mika. It was released as the lead single of his third studio album, The Origin of Love (2012), in the United Kingdom, Europe and America, and the second single in France. The song features American singer Pharrell Williams. It was written by Mika, Williams and Ben Garrett and produced by Peter Hayes and Nick Littlemore.

The song received generally favorable reviews from music critics. Some called it a "great summer song" and praised Pharrell for giving another dimension to Mika's vocals. However, some critics dismissed Mika's processed vocals and the song's rhythm. The song has charted on the French Singles Chart and on the Belgium Charts, but failed to chart on the UK Singles Chart.

After the release of "Elle me dit" in 2011, only in French-speaking countries, Mika unveiled a music video for the song "Make You Happy", which is not a single, but is included on The Origin of Love. Later, on 14 July 2012, Mika previewed a 30-second clip of the song. It was uploaded to Amazon ahead of its official unveiling and was later removed from the online store. The song was released on 15 June 2012.

"Celebrate" was written by Mika, Pharrell Williams and Ben Garrett and produced by Peter Hayes and Nick Littlemore. Nick Littlemore of the Australian electorock outfit, Empire of the Sun, lends a hand on the production, which gives the song a retro synthpop clubby feel. The song's message is clear—he simply wants the whole world to celebrate life.

Emily Tam of Idolator wrote that "it shows that the Neptunes mastermind brings his smooth vocals, giving it another dimension." Ivan Ibarra of DJ Booth called it "a synth-heavy pop, yet head-nodding, sound that allows MIKA to blossom." Lanne Billings from "Paste Magazine" named it "an Elton John-ish spin on the eternal 'let’s party' single."

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