Weird and wonderful people have celebrated the 100 millionth copy of the Guinness World Records book.
The loudest burper in the world performed for everyone in the Tate Modern art gallery in London.
Among the guests was Brazilian Elaine Davidson who has 1,903 piercings, studs and rings over her tattooed body.
And the man with the world's longest tongue - Stephen Taylor, from Coventry - stuck out all 9.6 centimetres of it for everyone to see.