The "American Idol" winner and "Talk Dirty" singer were together for three years, and seemed to be headed toward marriage.
The 25-year-old American Idol winner opened up about the "Talk Dirty" singer in an interview with The Breakfast Club on Power 105.1. Sparks and Derulo broke up after three years of dating in September 2014, and the star admitted she is still unclear on why they split.
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