Claim: Luis Fonsi uses a pseudonym.
Evidence: Luis Alfonso Rodríguez López-Cepero , more commonly known by his stage name Luis Fonsi , -LRB- born April 15 , 1978 -RRB- is a Puerto Rican singer , songwriter and actor.
A stage name , also called a screen name , is a pseudonym used by performers and entertainers such as actors , comedians , and musicians.