[7] Bloom graduated from New York University and, at the age of twenty-five, veered from his scientific studies to work as an editor for a rock magazine.

[1] He tutored the band Styx in how to appeal to "more staid magazines" such as the Wall Street Journal and People and so make them mainstream.

[2] Bloom was also a publicist for Michael Jackson,[9][10] Cyndi Lauper,[10] Talking Heads,[10] Lionel Richie,[11][12] ZZ Top,[13] Bette Midler, AC/DC, Simon & Garfunkel,[14] John Mellencamp,[15][16] Earth, Wind & Fire,[17] and Kiss.

[18][19] Bloom has been described in a biography of Billy Joel as "the public relations spinmeister to have on your payroll in the seventies and eighties if you were a musician and your image needed to be authenticated to the masses".

With his company he had successfully transformed and launched the careers of many rock stars including John Mellencamp, KISS, Hall and Oates, AC/DC, and Run DMC".

"[21] Bloom has written a number of books, including: The Genius of the Beast, Global Brain: The Evolution of Mass Mind from the Big Bang to the 21st Century, and The Lucifer Principle.

According to Bloom: "Everything from the wolf-pack behavior of music business executives to the lemming-like conduct of hypocritical journalists helped shape my insights" and that "[t]he real magic of rock happens at a concert, where if the performers are successful, individuals ... merge in a pulse of common emotion ...

The New York Times observed that regulations in regard to obtaining licenses at the city clerk's office were likely in breach of the Americans with Disabilities Act of 1990.

[32] His article has been described as "not unlike some forms of religious anti-Semitism",[33] and together with similar comments in his book The Lucifer Principle, "an example of Orientalist (and racist) literature".