Talking tonight

David Letterman: Will Ferrell, a demonstration by MythBusters

Jay Leno: Kyra Sedgwick, Chris Matthews, Alanis Morissette

Late Late Show: Aisha Tyler, Jarod Miller, Keaton Simons

Conan O'Brien: Patricia Heaton, Katt Williams, Thrice (R)

Last Call: Perez Hilton, Sig & Edgar Hansen, Katy Perry (R)

Colbert Report: Senator Jim Webb

Jimmy Kimmel: Seth Green, Jesse Ventura, Jamie Lidell

The View: An hour of Hot Topics

Regis and Kelly: Nick Lachey, Caroline Rhea, Miss Universe Dayana Mendoza, guest co-host Bryant Gumbel

Ellen DeGeneres: Sean Combs, American Idol castoff Brooke White, John Legend and Estelle (R)

Tavis Smiley: Alanis Morissette, Gov. David Paterson (R)

Late Night Laughs

(From July 17, 2008)

Late Night with Conan O'Brien

Reporters assigned to Barack Obama say Obama has been working out like crazy at a gym and playing hours of basketball. Meanwhile, John McCain has joined a group of mall walkers.

Barack Obama is planning a trip to Iraq and several other Middle East countries. Obama says he's excited about the trip -- mainly because he's looking forward to meeting other people named Barack Obama.

The Late Late Show with Craig Ferguson

It was revealed today that Barrack Obama has been secretly interviewing candidates for vice-president while he works out in the gym. Screening people at the gym can only mean one thing -- our next VP, definitely not Al Gore.

Top 10 movies

The weekend's top 10 movies including last week's position and the weekend gross in U.S. dollars from Yahoo Canada Movies.

1. (-) The Dark Knight $155.3 millon

2. (-) Mamma Mia! $27.6 million

3. (2) Hancock $14 million

4. (3) Journey to the Center of the Earth $11.9 million

5. (1) Hellboy II: The Golden Army $10 million

6. (4) WALL-E $9.8 million

7. (-) Space Chimps $7.3 million

8. (5) Wanted $5 million

9. (6) Get Smart $4 million

10. (8) Kung Fu Panda $1.8 million

Today in Music History

* In 1971, Carole King won a gold LP for Tapestry. The album, released four months earlier, was the number 1 album in the U.S. for 15 weeks, and stayed on the LP chart for 292 weeks.

* In 1975, Willie Nelson debuted on the album charts with Red Headed Stranger.

* In 1987, Guns N' Roses released their debut album, Appetite For Destruction.