Roberto Fidel Ernesto Sorokin Esparza, known professionally as Coti, is an Argentine singer, songwriter, and musician. He is best known for collaborations with other Spanish-language artists like Andrés Calamaro, Julieta Venegas, Natalia Oreiro and Luis Miguel in his last album. His 2005 release, Esta Mañana y Otros Cuentos went gold in both Argentina and Mexico, while going double platinum in Spain.