1. Kevin Bacon Wears a Blue Button Down Shirt and Brown Boots

In the Season 5 premiere, Weird Al Yankovic signs on as band leader and guest Kevin Bacon leads a tour of Kevin Town. Also, a leprechaun hassles Scott.

2. The Lonely Island Wear Dark Pants and Eyeglasses

The Lonely Island shows off their new merchandise; Gil Faizon and George St. Geegland discuss their upcoming Broadway show.

3. Tony Hale Wears a Blue Flannel Shirt and Fuchsia Sneakers

Tony Hale throws out the ceremonial first pitch, while Scott pranks the crew. Also, a preview of Scott's offbeat new game show, "You Made Your Bed, Now Lie in It."

4. Tegan and Sara Wear Leather Jackets and Skinny Jeans

Tegan and Sara riff on their songwriting process, while Scott suspects there's something odd about the new intern. Also, the audience receives acting tips from a surprise guest.

5. T-Pain Wears Shredded Jeans and a Printed Shirt

T-Pain, Scott and Weird Al collaborate on a song; and Melvin Alberts talks about being abducted by aliens. Later, Scott's scientific breakthrough allows him to get more stuff done; and Weird Al previews his new foodie-TV show.

6. Aubrey Plaza Wears a Velvet Off-the-Shoulder Gown With Flowers in Her Hair

Aubrey Plaza attempts to seduce Scott; and later, a stranger transports Scott and Weird Al to a different era in time. Also, an intrepid adventurer regales all with his sexual exploits.

7. Joe Jonas Wears a Maroon and Gold Letterman Jacket With White Sneakers

Joe Jonas demonstrates his unusual cellphone replacement; Scott arranges a memorial service for an old friend; Maxwell Keeper discusses his workplace; and a sneak peek at Scott's movie.

8. Nathan Fielder Wears a Blue and Grey Flannel and Jeans

Nathan Fielder makes and appearance; Scott and "Weird Al" try their best to freak out Nathan Fielder.

9. Kristen Schaal Wears Strawberry Colored Pants and a Multicolored Shirt

Kristen Schaal shows off her real voice; Paul Rust debuts his New No Nos.

10. Zach Galifianakis Wears Rolled Khakis and Shoes With Brown Laces

Zach Galifianakis, "Weird Al" and the Comedy Bang! Bang! crew look back at at their favorite memories of Scott.

12. Gillian Jacobs Wears a Gray Checkered Suit and a Red Bow Tie

The studio prepares for a calm Halloween, but unbeknownst to Scott and the crew, they are being haunted by a ghoulish spirit; Gillian Jacobs gets a free cocktail; Scott shows off his latest film role.

13. Scott Aukerman Wears a Tailored Black Suit

When Scott leaves the show for a new opportunity, Jason Mantzoukas takes over as special substitute host and his first guest ends up being Scott; legendary soul singer Donny Gary.

14. Krysten Ritter Wears a Turtleneck and Black Boots

Scott and Weird Al throw a party that gets a little out of control; Krysten Ritter plays her favorite party game; author Gail Summercat gives tips to women in the workplace.

15. Allison Janney Wears a Chambray Western Shirt and Suede Fringe Boots

Weird Al and the gang cope with an untimely death of a friend; Allison Janney stops by the Comedy Bang! Bang! set to chat and play an exciting game.

16. Ben Folds Wears a Black Button Down and Jeans

Scott's estranged family visits; Ben Folds discusses his new start-up business; Weird Al shows his new sports documentary; world-traveler Martin Moreland visits.

17. Malin Akerman Wears a Black Blouse and Cropped Jeans

Malin Akerman reveals all her deep dark secrets; Slow Joey tries to juggle his new business venture with falling in love.

18. Mike Colter Wears a Pink Button Up and Black Boots

Scott is excited to spend Thanksgiving celebrating with the Comedy Bang! Bang! crew, but a group of outsiders could disrupt his plans; Mike Colter discloses a shocking revelation; teacher Joe Bongo discusses his extra-curricular activities.

19. Reggie Watts Wears a Purple and Yellow Quilted Sweatshirt

Reggie Watts returns to the show just in time to try to prevent a disaster; Weird Al has a surprising announcement; Adam Scott tries to give Scott some assistance.

20. Lord Andrew Lloyd Webber Wears a Purple Top Hat & Fabrice Fabrice Wears One Pink Fur Leg Warmer

Scott receives some disturbing news that may mean the end of Comedy Bang! Bang! forever, but before the end, old chums Lord Andrew Lloyd Webber and Fabrice Fabrice stop by to wish the gang goodbye.