Derek Hough Calls Sister Julianne's Wedding the 'Happiest Day' of His Life, Talks J.Lo and ARod

2:40 PM PDT, Thu Aug 3, 2017

ET caught up with the 'World of Dance' star at NBC's Fall 2017 TCA presentation on Thursday, where he also revealed which celeb he'd love to see in the 'DWTS' ballroom next season.

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Derek Hough Calls Sister Julianne's Wedding the 'Happiest Day' of His Life, Talks J.Lo and ARod

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