yo soy el rey: I am the king.
"Soy yo" means "I am me", usually meaning "it's me." "mar" is the word for "sea." If you mean "I am the sea", then it would be "Yo soy el mar."
"Yo soy el criminal" was created in 1960.
I am the king.
yo soy el señor Quintana means: I am Mr. Quintana.
El Campeón soy yo was created in 1960.
El Duro Soy Yo was created in 2005.
Yo soy muy malo
I am who I am.
El culpable soy yo was created in 2008-11.
Soy yo: "I am me," or "it's me."
yo no soy: I'm not