History:

How it first started:

The first Reggae recordings in Latin America were made in Panama in the mid-1970's. The large number of Jamaican immigrants brought in to build the Panama Canal, brought reggae music with them and introduced it to the local population. Without Panamanian reggae, Reggaeton old probably never caught on. Some even argue that reggaeton itself started in Panama, and that Puerto Rican artists added influences from house music and hip hop. In 1985, a rapper called Vico C from Puerto Rico produced one of the first Spanish-language hip hop records in Puerto Rico.

Vico C (born Armando Lozada Cruz on Septmeber 8. 1971) is a Puerto Rican rap singer who was born in New York but raised in Puerto rico.

Toward the middle of the decade, Puerto Ricans were producing their own riddims with clear influence from hip hop and other styles.

Reggaeton Street Beef first started back in the 1990's. Todays Reggeaton Street Beef is different then it was when it first started back in the 1990's. Back in the 1990's Reggaeton Street Beef was just a hobby, a Sport, something to do for fun other than just singing and/or raping. Throughout the years, Reggaeton Street beef has become more and more realistic. Now Reggaeton Beef is when you have beef with someone and you handle it through a freestyle. Freestyling back and forth till one is done. Sometimes things get out of hand and become more serious. The beef can turn out to become fights in clubs, concerts, or wherever they see each other. Now in days there are many reggaeton beefs. There are rapers or singers that have more than one beef. For an example, Arcangel, he has beef with more than 5 people.

http://www.assatashakur.org/forum/showthread.php?p=115370

This site will tell you a little more about the things going on and what creates the Reggaeton Street Beef.