World's biggest floating Christmas tree lit in Brazil.

A massive floating Christmas tree has been lit in the harbour in the city of Rio de Janeiro.

The tree is listed as the largest in the world by the Guinness book of world records.

It has 3.1 million light bulbs, is 85-metres high and weighs 542 tonnes.

There was an amazing six minute firework display when it was lit up as the start of the festive celebrations in the Brazilian city.

More than 100,000 people came to watch the show.

See the tree being lit.