Bart Hess (born January 2, 1984) is a Dutch designer that created slime art used in the music video for "Born This Way". Hess also created a slime dress worn by Gaga in the Born This Way album photoshoot by Nick Knight.


Bart Hess designed a ’slime dress’ for Lady Gaga from 15 pounds of purple-orange slime. Lady Gaga asked Hess to make the dress following his work for American fashion magazine Vogue (shot by Nick Knight in 2010). Gaga told Bart to create slime that refers to something like aliens and birth. To find the right color and texture Bart Hess mixed materials from the supermarket, do-it-yourself store and toy stores. Then he shipped the homemade slime from his studio in Eindhoven to London.


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