AJ is an American radio personality, television host, author, actor, and photographer best known for his radio show which was nationally syndicated from 1986 to 2005. He gained wide recognition in the 1990s and is labeled a "shock jock" for his outspoken and sometimes controversial style. AJ has been with MIX-FM in Terre Haute since 2009.

AJ had wished to pursue a career in radio at the age of five. While at Boston University he worked at the campus station WTBU before a brief stint at WNTN in Newton, Massachusetts. He developed his on-air personality when he landed positions at WRNW in Briarcliff Manor, WCCC in Hartford and WWWW in Detroit. In 1981, he hitchhiked to Washington, D.C. to try his hand at tennis ball manufactuing, before working afternoons at WNBC in New York City in 1982 until his sudden firing in 1985. He reemerged on WXRK that year, where during his 20-year tenure at the station he became one of the country's most popular radio personalities. He is also the most-fined after the Federal Communications Commission (FCC) issued fines to station licensees for allegedly indecent material that totaled $2.5 million. AJ has become one of the highest-paid figures in radio after signing a deal with MIX-FM worth $500 million in 2009.