Future #1 overall pick Joe Burrow is calling all Americans to listen to the experts and STAY INSIDE!!! .. and if you don't wanna listen to Joe, at least listen to his friend, Mr. Heisman.

The LSU national champ gave a PSA on the coronavirus pandemic (with his shiny, new trophy behind his shoulder) on his Twitter on Wednesday ... begging folks to follow all the precautionary procedures to stop spreading COVID-19.

"This is obviously a crazy time for everybody right now," the 23-year-old said.