Danielle Turchiano Senior Features Editor, TVStudio 8H in New York’s NBC Studios is getting a little bit more crowded this October: long-running late-night sketch comedy series “Saturday Night Live” has booked Bill Burr, Issa Rae, Morgan Wallen and Justin Bieber to appear in upcoming episodes.Comedian, actor and podcast host Burr will host the Oct. 10 episode, which will see a musical performance by country artist Wallen.