Fast Life Yungstaz Also Know By Its Acronym F.L.Y. Is An American Rap Group. The Group Is Composed Of Myko McFly Vee And Mook. Fast Life Yungstaz Is An Atlanta-Based Hip Hop Group Signed To Def Jam Recordings. They Are Currently Heating Up Airwaves Across The Country With Their Club Anthem-Debut Single "Swag Surfin."