THE MINDY PROJECT: Mindy plans a Christmas party but one guest’s date turns the tasteful celebration into something else entirely. (Jordin Althaus/FOX)

Florida Georgia Line, Hunter Hayes, Jason Aldean, Luke Bryan and Tim McGraw are all honored on “CMT Artists of the Year” (CMT at 8 p.m.), a celebration of the most influential artists in country music in 2013. For the first time, the 90-minute special will include live performances from the likes of Lady Antebellum, Lionel Richie, Dierks Bentley and many more. Expect tributes, interviews and collaborative performances.

Sam and Dean are on angel slaughter duty on the latest “Supernatural” (CW at 9). They discover Castiel is already on the case, but Castiel goes missing, and Dean starts to wonder if it’s time to tell Sam the truth about Ezekiel.

Mindy plans an office Christmas party on “The Mindy Project” (Fox at 9:30) so she can spend more time with Cliff, but things don’t go exactly as planned. Brendan Deslaurier’s date for the shindig shows up and literally shows up Mindy by performing a seductive “Santa Baby” number for the other guests. Then it’s Mindy’s responsibility to get the party back on track and get Cliff’s attention back on her.

RETURNING SHOW: John Quinones of ABC News is back as host of “What Would You Do?” (ABC at 10), a reality show that tests the general public’s moral barometer in realistic but daunting situations.

SEASON PREMIERE: Returning for its fifth season, “Shipping Wars” (A&E at 10) has Jarrett in a panic over delivering a chicken car on time for a high profile client. The rock-and-roll pressure is getting to him, while Roy is forced to deal with a rotting shipment. That’s when things really start to fall apart for the team and their business.

Boden is still absorbed with keeping the firehouse afloat on “Chicago Fire” (NBC at 10), while Dawson and Casey are more concerned with their budding romance. Then, Cruz’s worries about his brother’s safety escalate.

Actors Ray Romano and James Franco stop by the “Late Show With David Letterman” (CBS at 11:35).

Actors Liam Hemsworth and Jayma Mays join “The Tonight Show With Jay Leno” (NBC at 11:35), with a musical performance from The Rides featuring Stephen Stills and Kenny Wayne Shepherd.

Actors Zoe Saldana and Martin Freeman come to “Jimmy Kimmel Live” (ABC at 11:35), along with a musical performance from Toro Y Moi.

— Rachel Lubitz