In certain areas, Mardi Gras and Carnival began on January 6 this year with the celebration of the Epiphany, also known as Three Kings' Day.
Other states like Texas don't necessarily declare Mardi Gras a state holiday, but cities like Galveston are known to celebrate and do it up big time for Fat Tuesday.
Of course in America, New Orleans is synonymous with Mardi Gras and letting good times roll. Celebrating Mardi Gras doesn't have to be hard, and by viewing the guide below it can be made even easier.
Where does it come from? The name of the holiday originated thousands of years ago in Europe because of the binge eating that would occur in the days leading up to Lent, the period of fasting between Ash Wednesday and Easter Sunday. If you are the lucky guest who receives the plastic baby, you get to bring the King Cake to the next Mardi Gras party.
During Lent, certain foods, which historically included meat, fish, fats, eggs, and milk-based foods, are given up.
John Allen, Karen Elkhouja, Rodney Glidewell, Connie Glidewell and Michelle Jackson settle in for a night of Mardi Gras fun.
In Italy, Mardi Gras is called Martedì Grasso while in Sweden, locals celebrate Fettisdagen during which cream-filled buns called semla are eaten.
This is because people used to use the opportunity to use up any left over eggs in the cupboard before the start of Lent. There are also Abita beer specials and other traditional Cajun and Creole offerings.
That would make February 3 the earliest Mardi Gras can be.
And small donuts are popular around the country.
Once they cool, frost the cookies with vanilla icing. And some are stuffed with jam or chocolate. The history of the Mardi Gras Indians is nearly as colorful as the suits themselves.
Carnival is all about letting off some steam. "Mardi Gras Indians began appearing in the late 19th century; the first group was the Creole Wild West from the Seventh Ward".
When they were unable to do that, they settled for the next best thing by throwing a Mardi Gras celebration in his memory.
Carnival season, which starts on January 6, draws about 1 million visitors and pumps about 840 million dollars (£604 million) into the city's economy, according to the New Orleans Convention and Visitors Bureau.
But it isn't all fun and games.
Hazel Wilmoth, Juanita Rogers, Mary Nicholson and Jane Needham pose for a photo in their Mardi Gras finery.