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Fans are finding out what Harry Styles was up to earlier this year in between One Direction world tours.  One of his side projects is coming to light now that fellow pop star Ariana Grande has revealed the tracklisting for her sophomore album My Everything.

Harry has a songwriting credit on one of the tracks titled "A Little Bit Of Your Heart."  MTV says the boy band singer wrote the song specifically for Ariana.  Harry joins a number of other big-name guest appearances on the rising diva's upcoming release.   A$AP Ferg, The Weeknd, Big Sean and Childish Gambino are all featured.  Zedd will also appear on her next single "Break Free." 

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