Houston is to be posthumously honored with the 2012 Billboard Millennium Award at the event, which her daughter Bobbi Kristina and sister-in-law Pat are expected to attend.
Julie Bowen and Ty Burrell are to serve as hosts of the ceremony at the MGM Grand Garden Arena.
Houston drowned in a hotel bathtub Feb. 11 in Beverly Hills, Calif., after using cocaine. She was 48.
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