The artists, along with Blue Oyster Cult, Jean Ritchie, Public Enemy, The Tokens and The Ramones, were inducted during a gala Thursday night.
"When I was a little kid in North Babylon, on Lakeway Drive, just dreaming of being a part of hip hop -- I never dreamed that I would be in a position to actually be looking at a wonderful room full of people who are actually honoring and celebrating the art that I created," LL Cool J said at the event.
"That this music can sit side-by-side with other great offerings of music is a true pleasure," Public Enemy's Chuck D said.
Doo-wop pioneer and inductee Kenny Vance said: "There's nothing like being recognized in your hometown. History is so important."
Benatar couldn't attend the gala but sent an acceptance letter.
"My upbringing, and the values and ideals I learned back in my hometown kept me grounded," Benatar said. "I never forget that a small-town girl from Lindenhurst, L.I., actually got the chance to live her dreams. Long Island girls rock."