The next few days see not one, but two appearances by Melissa Etheridge promoting her Christmas album and Kristen Chenoweth talking about hers on CBS News “Sunday Morning.”

And as if a week of Tony Bennett wasn’t enough to conjure the season, Leno has called on that other sure-fire harbinger of the holidays, Johnny Mathis, to work his magic.

Friday, December 19
Al Jarreau – “The Tavis Smiley Show”
Geoff Keith, Michael Yo, Whitney Cummings – “Chelsea Lately” – rerun
Melissa Etheridge – “The Bonnie Hunt Show”
Jerry Seinfeld, Leona Lewis – “Late Show with David Letterman”
Melissa Etheridge – “The Tonight Show with Jay Leno”
Adam Sandler, Fall Out Boy – “Jimmy Kimmel Live!”

Saturday, December 20
Bloc Party, Ghostland Observatory – “Austin City Limits” – rerun
Adele – “Saturday Night Live” – rerun

Sunday, December 21
Kristen Chenoweth – CBS News “Sunday Morning”

Monday, December 22
Andy Dick, Judy Gold, John Pinette – “The View”
Il Divo – “Live with Regis and Kelly”
Jonas Brothers – “The Ellen DeGeneres Show” – rerun
Seal – “The Tavis Smiley Show” – rerun
Randy Sklar, Jason Sklar, Lavell Crawford – “Chelsea Lately”
David Foster – “The Hour with George Stroumboulopoulos” – rerun
Eric Hutchinson – “The Bonnie Hunt Show” – rerun
Todd Rundgren – “Late Show with David Letterman”
Robin Williams, Johnny Mathis – “The Tonight Show with Jay Leno”
Bela Fleck & The Flecktones – “Late Night with Conan O’Brien”
Keane – “Jimmy Kimmel Live!”
Matt Nathanson – “Late Late Show with Craig Ferguson”
The Airborne Toxic Event – “Last Call with Carson Daly” – rerun