Happy Berfday Simpsons!

What's the longest-running prime time entertainment TV show in America?

• The Simpsons, which celebrates its 20th anniversary today, claims that honor. Homer and Marge, Bart, Lisaand Maggie make up the world's favorite animated family. They haven't gotten where they are without outside help. The list of guest actors who lent their voices — and often their personas — to the show is long and eclectic, and includes actors, musicians, scientists, politicians, reporters, athletes and even an astronaut. Here are just a few names on the long list of those whose voices have graced The Simpsons: Donald Sutherland, Meryl Streep,Dustin Hoffman, Ann Hathaway, Roger Clemens, Serena Williams, Elizabeth Taylor, Michael Jackson, Johnny Carson, Buzz Aldrin, James Taylor, Mel Brooks, three of The Beatles, Joe Namath, Steve Martin, Rupert Murdoch, Steven Hawking, The Who, Stephen King, Paul Newman, Ben Stiller, J.K. Rowling, LeBron James, 50 Cent, Stephen Colbert and Jon Stewart.

Quote: "You can't create a monster, then whine when it stomps on a few buildings." — Lisa Simpson