Monday through Friday, 11:35 PM-12:37 AM, ET/PT

(*Denotes changes and/or additions to previous schedule

(n) Denotes new broadcast)

Tuesday, Dec. 27 Â Â Â Actor Steve Martin; actress Felicity Jones; musical guests Steve Martin and the Lonesome River Band

Wednesday, Dec. 28 Â Musician Justin Bieber; comedian Brian Regan; musical guest Freesol

Thursday, Dec. 29 Â Â Â Actor Matt Damon; musical guest Shelby Lynne

Friday, Dec. 30 Â Â Â Â Â Actor Tom Hanks; musical guests My Morning Jacket

Monday, Jan. 2 Â Â Â Â Â Actor Robert Downey, Jr.; actress Rooney Mara

Tuesday, Jan. 3 Â Â Â Â Actor Will Arnett; comedian Lisa Lampanelli; musical guests Guided By Voices (n)

*Wednesday, Jan. 4 News anchor Brian Williams; musical guest WU LYF (n)

*Thursday, Jan. 5 Â Â Actress Tina Fey; musical guests Barr Brothers (n)

Friday, Jan. 6 Â Â Â Â Â Â Actress Kristen Bell; musical guests Blind Pilot (n)

RATING: TV-PG (Rating may change on day of broadcast due to specific subject matter.)