It's official! 'Blurred Lines' named song of the summer by Billboard

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Robin Thicke's ‘Blurred Lines’ is now officially the song of the summer.

To no one's surprise, Robin Thicke's "Blurred Lines" is Billboard's song of the summer.

Billboard announced the list Thursday. Rock outfit Imagine Dragons is second with "Radioactive," followed by Daft Punk with "Get Lucky."

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Miley Cyrus' party anthem "We Can't Stop" is fourth and "Can't Hold Us" by Macklemore & Ryan Lewis is fifth.

The rest of the list includes hits from Florida Georgia Line, Justin Timberlake, Bruno Mars and Selena Gomez. Oscar nominee Anna Kendrick's "Pitch Perfect" soundtrack hit, "Cups," is ninth.

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Thicke's "Blurred Lines" was also named Spotify's song of the summer.