Ivan Nikolov / WENN 1 / 15
Ivan Nikolov / WENN 1 / 15

CHICAGO (AP) -- Singer and actress Jennifer Hudson hopes to show her commitment to a healthier lifestyle with the opening of a new weight loss center in Chicago.

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The Chicago native will open the Jennifer Hudson Weight Watchers Center on Tuesday. Hudson has lost 80 pounds and is a Weight Watchers spokeswoman. Chicago Mayor Rahm Emanuel is expected to attend the event in the city's Hyde Park neighborhood on the South Side.

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Weight Watchers says it'll donate a portion of the center's revenue to a foundation in honor of Hudson's late nephew, Julian King. In October 2008, the bodies of Hudson's mother and brother were found in the family's home. King's body was found days later in a vehicle. All three had been shot.

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Hudson is known for her Oscar-winning role in "Dreamgirls."