Carrie Underwood's Monday night (Nov. 2) appearance on the Late Show With David Letterman kicks off a full week of country-oriented musical guests on the CBS program. Others appearing this week include Brad Paisley, Ryan Bingham, Keith Urban and Ralph Stanley. Underwood is scheduled to perform "Cowboy Casanova" during the episode featuring actress Julia Louis-Dreyfus. Paisley will perform "American Saturday Night" on Tuesday's (Nov. 3) show that also features former Vice President Al Gore. Bill Cosby appears Wednesday (Nov. 4), the same night Ryan Bingham & the Dead Horses will perform "Tell My Mother I Miss Her So." Urban and comedian-talk show host Bill Maher appear Thursday (Nov. 5), and Stanley and comic-actor Ricky Gervais are booked for Friday (Nov. 6).