‘SNL’ announces Jean Smart, Ariana Grande, Michael Keaton and more as

Jean Smart will open the season on Sept. 28 with musical guest Jelly Roll.. Nate Bargatze hosts on Oct. 5, featuring songs by Coldplay.. Ariana Grande returns to host on Oct. 12 with musical guest Stevie Nicks.. Michael Keaton takes the stage on Oct. 19, accompanied by Billie Eilish.. John Mulaney also set to host this exciting season.