Her or H.E.R. was a term used in the song by Common called 'I Use to Love H.E.R.(1994)' The term H.E.R. in the song refers to hip-hop or "Hearing Every Rhyme" or "Hip Hop in its Essence and Real."
The idea of her is an attempt to personify hip-hop and describing it in how she (hip-hop) changed from a once glorious respectable woman to someone looking to make a quick buck by any means. The idea was that it changed from a falling of conscious to people just doing it to make money and glorifying a 'thug' life.
Once the man got to her, he altered the native
Told her if she got an image and a gimmick
Then she could make some money, and did it like a dummy(...)
-I Use to Love H.E.R. - Common