Seasons & episodes

Dave mentions that he woke up this morning with a swollen eye, then hypothesizes that it's either an irritation, infection or inflammation; during ""Stupid Human Tricks,"" a man juggles and removes his shirt at the same time; Norah Jones is presented with a Grammy© made out of lunch meat.

Dave's worsening eye infection puts him on the bench indefinitely, so scheduled guest Bruce Willis fills in for Daddy. Amongst tonight's highlights: Bruno and George Clarke duct tape plastic sheets on the backdrop; the ""Lean Mean EZ CD Opening Machine"" (a sledge hammer) is demonstrated; Paul interviews Bruce, then Bruce sits in with the band on harmonica; John Mayer performs ""Why Georgia.""

Tennis great John McEnroe fills in for Dave, whose condition has not improved; Fred Schnieder of The B-52's fills in for Paul, whom, according to Bones Malone, has an appointment with Dr. Phil; John and Tom Arnold help Eric Ripert make Black Pepper and Cognac Shrimp.

Regis fills in for Dave, who has now been diagnosed with shingles; Greg Giraldo does stand-up; Kathleen Edwards sings ""Hockey Skates.""

Whoopi Goldberg (a former talk-show host in her own right) is the latest to fill in for Dave during his extended bout with shingles. She starts the monologue by announcing that ""tonight's show is in color,"" and then points out that the CBS Orchestra was once again the house band of last weekend's Rock n' Roll Hall of Fame induction ceremony. Also, comedian Andy Vastola makes his network television debut.

Guest host Vince Vaughn charms the audience and hits on Rosie Perez.

No episode summary available yet.

Will Ferrell joins fellow ""Old School"" star Vince Vaughn as a guest host on Letterman. In his monolouge, Will does his famous George W. Bush impression and serenades the absent host with his version of Kenny Rogers' ""Lady."" Later on, the up and coming rock band The American Hi-Fi performs their hit ""The Art of Losing.""

Will & Grace star Megan Mullally shows a clip of her tripping as she walked onstage to accept an award at last Sunday's Screen Actors Guild awards. Later, she sings a blues number called ""Guilty.""

Brad Garrett of Everybody Loves Raymond fame does a very Letterman-esque, one-liner heavy monologue, then mentions a recent medical mishap where his testes broke his fall. Also, Lyle Lovett sings ""Straighten Up and Fly Right.""

Chicago-born comedian (and old friend of Dave's) Tom Dreseen becomes the latest fill-in host for Dave. He mentions that a fan outside the theater mistook him for Regis, then goes a spiel about his daughter's love of hip-hop. Also, lesbian comedian Suzanne Westenhoefer performs.

No episode summary available yet.

Paul fills in for Dave, lamenting in song about the big shoes he has to fill; Mike Smith of the Dave Clark Five fills in for Paul, who later sings the band's hit ""Because""; indie rocker Cat Power makes her network television debut, and is so camera-shy she can't seem to eye contact with the audience.

In a bizarre running gag, Bill Cosby pretends to be so senile that a substitute cue-card boy introduces all of tonight's guests; Hilton Ruiz, Spaceman Paterson, Steve Berrios, and Andy Gonzales all sit in lieu of a temporary depleted band tonight (only Paul, Sid and Bruce bothered to show up); Sofia Vergara promotes Chasing Papi; the D4 performs ""Get Loose.""

Luke Wilson brings up a story about how he told his Old School co-stars Will Ferrell and Vince Vaughn he was hosting the Late Show. He was surprised by how unimpressed they were, as they also filled in for Dave. Later in the show, Seether performs ""Driven Under.""

Dave returns from a month-long hiatus and makes fun of his health problems. He also shows an old ""Tonight Show"" clip as a tribute to the late, great George Miller.

""I have to be here tonight,"" Dave utters in the monologue, ""I'm out of sick days."" An ""Incredible Dog Challenge"" sponsored by Purina Dog Chow has been postponed by the weather, but that doesn't stop George Clarke from welding a metal garbage can.

Dave shows footage of Donald Rumsfeld unintentionally flipping the bird at a press conference, and later he chats with adolescent ""Bernie Mac Show"" star Jeremy Suarez.

After admitting that his medicine is making him bloated, Dave loosens his belt for all the world to see; during Biff's annual visit to Yankees Spring Training, he and Hideki Matsui recreate Abbott & Costello's ""Who's On First?"" routine; ten members of an Air Force base in Alaska present the Top Ten; Bo Diddley and the Debby Hastings Band performs ""Who Do You Love.""

Mailbag: ""Does Alan Kalter really have a twin?"" Dave points out that he does have a brother named Rick, but Alan interrupts with a chin rub. Apparently, Big Red recently discovered he has a twin sister, Denise. After catching up on lost time at a local restaurant, Alan and Denise go to his place and make out.

Dave shows a clip of Les Moonves on last night's episode of The Practice; Dave warns Steph/Monty to not ask the monkey question, but she does anyway; The Folksmen (stars of the film ""A Mighty Wind"") perform ""Old Joe's Place.""

Dave and Paul wonder openly what to ask Lisa Marie Presley, who is on the show tonight to promote her first solo album. Later in the show, she sings ""Lights Out.""

Dave reminds us that his 56th birthday was on Saturday, but he claims it was really his 34th and CBS aged him; Dave tells a funny story about George Miller's memorial service; ""Hootie Johnson"" presents Dave with a green Masters jacket.

Dave announces that the Late Show (and not CNN) has the legal rights to a screen caption that reads ""Showdown: Syria""; Tony Mendez gets scolded by Daddy for abbreviating ""Dr. Phil's Words of Wisdom"" to ""Dr. Phil's Words of W"" on a cue-card; a woman who lost her luggage at JFK Airport participates in the new Hello Deli game ""What's Your Problem?"" (and she loses).