A Pennsylvania couple has kept their promise to each other for 80 years.

Bill and Marie DeCaro of Springfield, Pa. are celebrating their 80th wedding anniversary, making them the longest married couple in the United States.
    
The couple met at a dancing school and married back in 1929.
    
At one point Marie even worked for Bill and his brother in a Vaudeville act.
    
Both are still going strong at the ripe age of 100 and they say the secret to their long marriage is by making each day special with a lot of laughter.
    
And they do not believe in being angry at one another.