Sophie Trudeau is a Canadian musician. She is best known for being a member of Godspeed You! Black Emperor, and co-founder of Thee Silver Mt. Zion Memorial Orchestra & Tra-La-La Band with Efrim Menuck and Thierry Amar. She also plays in a number of other bands, including Valley of the Giants and The Mile End Ladies String Auxiliary. Trudeau first served as violinist for Godspeed You! Black Emperor on their first EP, Slow Riot for New Zerø Kanada, which was released in 1999. Trudeau went on later to co-found Thee Silver Mt.