Miss Piggy is a prima-donna pig who is absolutely convinced that she's destined for stardom, and nothing is going to stand in her way. Her public face is the soul of feminine charm, but she can instantly fly into a violent rage whenever she thinks she's insulted or thwarted. Kermit the Frog has learned this all too well; when she isn't smothering him in kisses, she's sending him flying through the air with a karate-chop.
Her talents...
She considers herself a dramatic actress and a great singer, with many other talents too (besides karate). In the Kaye Ballard episode of The Muppet Show, it has been proven that Miss Piggy can play a few instuments such as the trumpet and kazoo.
She also has displayed various talents on the big screen. In "The Great Muppet Caper", for instance, she shows that she can tap dance, swim, model, drive a truck, and ride a motorcycle, not to mention use her super strength to bend the bars of a jail cell. She repeated this latter feat in "The Muppets Take Manhattan", where she bent a metal bar in anger when she feared she was being cheated on. In that same movie, she also demonstrated an ability to roller skate in order to catch up with a man who stole her purse.
Personal life...
As for Miss Piggy's personal life, apparently her father cheated on his wife with other sows, while her mother gave birth to far too many piglets to be able to develop her mind. A life that Piggy herself was determined to avoid living, which is why she took off for the big city.
It was all downhill from there. People got all the jobs; pigs had to take what was left. To keep going, Miss Piggy walked a sandwich board for a barbecue stand. Desperate, she took a stage name, Laverne, and entered a beauty contest. She won and got her big break: a bacon commercial. This led to a season as mascot for a local TV sportscast called Pigskin Parade -- and then on to The Muppet Show."
In addition, she has two dimwitted nephews named Andy and Randy Pig and a pet poodle named Foo-Foo.
The frog of her life...
According to "The Muppet Movie", Kermit and the gang first met her at a beauty contest, where she was crowned Miss Bogen County. She cought sight of the frog while giving her acceptance speech and began singing "Never Before and Never Again" with great enthusiasm, all the while fantasizing over life with her newfound love, the frog of her life, Kermit (whom she often calls "Kermie"). Soon she found herself holding him in a warm embrace. Six years later, in "The Muppets Take Manhattan", she talks about the two of them getting married with the money they made from their musical.
