Lizzo thanked medical staffers for working to combat coronavirus by donating lunches to several hospitals across the United States, Billboard can confirm.The "Good As Hell" singer posted a montage video on Instagram yesterday (March 30) that documented medical workers at the University of Washington Medicine Center Montlake Emergency Department, Vanderbilt University Medical Center and more posing with their delivered meals."S/O to our heroes," she captioned the post, along with a donation link to the World Health Organization's COVID-19 Solidarity Response Fund.The Detroit-born hitmaker also donated meals to Henry Ford Hospital in Detroit, Mich. "You guys are putting yourselves on the frontline, so because of that, I wanted to treat y'all.