Here are some fun facts about Mardi Gras 2017. It takes place on Tuesday, February 28 (TODAY!), and marks 47 days until Easter. Many people make their own masks for the celebration, starting with a blank form.
It takes place the day before the start of Lent, meaning its date is different each year due to the time of Easter.
However, Mardi Gras also refers to the carnival of events that take place beginning on Epiphany (Three Kings Day) until the start of Lent.
The French phrase Mardi Gras translates into English as Fat Tuesday.
Mardi Gras is known as Fat Tuesday as many countries traditions see people eat rich, fatty foods the day before entering into Lent.
In the UK, many people eat pancakes made from fatty flour, eggs and butter, which used to be banned during lent.
Meanwhile fried bread and pastries made with the same ingredients are often made and eaten on Fat Tuesday in Latin American and Caribbean countries.
As well as eating fatty foods, many people take the opportunity of Mardi Gras to hold parties and carnivals.
One of the most famous is the Brazilian Carnival in Rio where two million people pack on to the streets to sing and dance.
The tradition dates back to 1723 and Brazil welcomes 70 per cent of its tourists during the event.
As well as singing and dancing, revellers wear brightly coloured colours as well as perform the traditional samba.
Another well-known Mardi Gras parade is in New Orleans, which also sees tourists stream into the city.
Starting early on Mardi Gras day, several parades make their way through the French Quarter, where participants where special costumes and masks. Here