The Roots Jam Session is a star-studded experience hosted by the legendary Roots crew. The award-winning hip-hop group and house band for “The Tonight Show with Jimmy Fallon” is taking their annual jam session all virtual this year, with a few surprise guests. Taking place the day before music’s biggest night of the year, the show will feature the entire group, including Questlove, Black Thought and a few of their famous friends. Tune in to find out who shows up.