Santiago Ruiz, known professionally as Tatool, is an Argentine record producer, songwriter and artist. He has worked on urban music projects with artists from Argentina and other countries. His collaborations include productions for Trueno, Nicki Nicole, Milo J, Tiago PZK, María Becerra, Eladio Carrión, Bad Gyal, Peso Pluma, Gorillaz, Sebastián Yatra, and Sean Paul.