Guillaume Tranchant, better known by his stage name Gringe, is a French rapper and songwriter. He is one half of the French hip hop duo Casseurs Flowters, along with Orelsan, with whom he has released two studio albums: Orelsan et Gringe sont les Casseurs Flowters in 2013 and the original soundtrack for their 2015 film Comment c'est loin.

Casseurs Flowters is a French hip hop duo established in 2004 by rappers Orelsan and Gringe. The duo's name is a reference to the two "Wet Bandits" from the movie Home Alone, called the "Casseurs Flotteurs" in the French dialogue.