The Ellen DeGeneres Show
(3 p.m., NBC10) - Nicole Richie; Russell Simmons.
The Oprah Winfrey Show (4 p.m., 6ABC) - Teddy Riley; Jonathan Franzen.
The Sing-Off (8 p.m., NBC10) - Ten a cappella groups compete for $100,000 and a recording contract.
American Country Awards (8 p.m., Fox29) - Trace Adkins hosts from Las Vegas.
The Closer (9 p.m., TNT) - A garbage bag containing more than $37,000 also holds a clue to the ambush of a detective.
Men of a Certain Age (10 p.m., TNT) - Joe's determination to getback in shape on the golf course fades after a few dawn practice sessions.
The Daily Show With Jon Stewart (11 p.m., COM) - Retired Army Gen. Hugh Shelton (Without Hesitation).
Conan (11 p.m., TBS) - Nicole Kidman; Charlie Day; Lauren Pritchard.
The Colbert Report (11:30 p.m., COM) - Garry Trudeau.
Late Show With David Letterman (11:35 p.m., CBS3) - Ray Romano; John Mellencamp performs.
The Tonight Show With Jay Leno (11:35 p.m., NBC10) - Russell Brand.
Lopez Tonight (Midnight, TBS) - Jo Frost; Nicki Minaj performs.