Kylie Jenner and Ellen reward deserving fans with a total of $1 million; Kris Jenner helps to surprise unsuspecting fans; performer Alyson Stoner; Average Andy trains with top players at the 2019 U.S. Open Tennis Championships and plays a match.

Melissa McCarthy ("Superintelligence"); Average Andy drives a pedicab around New York City; Ellen welcomes a viral-video family.

Chrissy Teigen ("Bring the Funny"); an interview and performance by Chance the Rapper.

An interview with Reese Witherspoon

Sean Hayes ("Hollywood Game Night"); Ellen welcomes an 11-year-old who interviewed presidential candidate Sen. Elizabeth Warren.

Talk-show host Kelly Clarkson ("The Kelly Clarkson Show").

Simon Cowell ("America's Got Talent"); the first winner of "American Ninja Warrior" in four years.

Renée Zellweger ("Judy")

Sarah Hyland ("The Wedding War"); guest host Dax Shepard ("Bless This Mess").

Comic Wanda Sykes.

Stephen 'tWitch' Boss shares some of the best moments from the 2019-2020 season; Riz Ahmed and Jay Sean perform.