Sweetener is the fourth studio album by American singer Ariana Grande. It was released on August 17, 2018, through Republic Records. The album is the follow-up to her 2016 studio album, Dangerous Woman, and features guest appearances from Pharrell Williams, Nicki Minaj and Missy Elliott.\n\nAnswer this question: when is ariana grande album sweetener coming out?
Let's think step by step below.
August 17 , 2018
To answer the above question, the relevant sentence is: It was released on August 17, 2018, through Republic Records.

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So, the answer is August 17 , 2018