Singer and actress Jennifer Hudson teams up with Chicago Mayor Rahm Emanuel to open a new weight loss center in the city in effort to show a commitment to healthy living.

The Chicago native, who lost 80 pounds since being the spokeswoman for Weight Watchers, will open the Jennifer Hudson Weight Watchers Center on Tuesday.

The two will appear in the city's Hyde Park neighborhood on the South Side to celebrate the grand opening of the Jennifer Hudson Weight Watchers Center in Chicago's Kenwood neighborhood.

In August, Emanuel and Hudson welcomed President Barack Obama to the Aragon Ballroom stage during the president's birthday bash in Washington, D.C.

Weight Watchers says it will donate 10 percent of the health center’s revenue to the Julian D. King Gift Foundation, in honor of Hudson's late nephew, Julian King.

In October 2008, her mother, Darnell Donerson, and brother Jason Hudson were found dead inside the family's Chicago home, while the body of her nephew was found several days later in a vehicle, according to the Associated Press.