Late-night television

Ashton Kutcher, Krysten Ritter and Beck appear on “ Conan” (11 p.m., TBS, r) … Charlie Day, Kevin Harvick and Hiss Golden Messenger appear on “ Late Show With David Letterman” (11:35 p.m., CBS, r) … James Corden, Vanessa Bayer and Robert Earl visit “ Late Night with Seth Meyers” (12:35 a.m., NBC, r) … Craig Ferguson hosts Matthew McConaughey, Frank Nicotero and Metallica on “ The Late Late Show” (12:35 a.m., CBS, r).

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