Mexican radio host and commentator who is best recognized for his work as a director on Jewel 93.7 FM in Mexico City. He is also known for his weekly program Hoy con MARIANO which he hosts for the XEJP-FM station.
He first started his career in radio at the age of 17, working for the local La Voz de los Atlantes station in Hidalgo. He then moved to Mexico City to further his study in communications and radio.
He is known for having won the Principles Award from the AC Communication Council for Best Radio Program in both 2007 and 2008.
His father Mariano Osorio Prerez was a lawyer. He is the eldest of three other brothers.