Who's On What Tonight? Your Guide to Late-Night TV (Tuesday, Oct. 2, 2012)

CONAN O'BRIEN: Justified's Timothy Olyphant, The Apparition's Ashley Greene, comedian Hari Kondabolu
DAVID LETTERMAN: How I Met Your Mother's Martin Short, Two Broke Girls' Kat Dennings
JAY LENO: Entertainment icon Carol Burnett, The Lone Ranger's Armie Hammer, Lang Lang
JIMMY KIMMEL: Modern Family's Ty Burrell, Michael Roman, pop culture icon Psy
JIMMY FALLON: CNN's Anderson Cooper, Emily Owens M.D.'s Mamie Gummer, rapper Kendrick Lamar
CRAIG FERGUSON: The Mindy Project's Mindy Kaling, comedian Carrot Top

Guest lineups are subject to change.

SOURCE: The Late Night TV Page