Shafaqna (International Shia News Agency) – The Grand Ayatollah Sistani answered some questions regarding ghina (songs). According to Shafaqna the questions and answers are as follows:
Question: Some people recite salaams on the tune of some songs. Is it haram or halal ?
Answer: If the recitation is not in a Lahvi manner, it is not haram. (Lahvi means something that is provocative and suitable for revelry).
Question: What is your ruling on ghina or song?
Answer: Singing (al-ghinã’) is harãm: doing it, listening to it, or living of it. By “singing — al-ghinã’,” I mean an amusing statement expressed in the tunes that are suitable for those who provide entertainment and amusement.
Source: Ayatollah Sistani