By about 2 months.
Lol.
"House party rap" was around in parties since the late 60's, with DJs performing improvised raps over tracks.
Most were explicit and couldn't be played over the radio due to lyrical content.
SHG just made it out of the studio first with an acceptable song.
Few months later there were other rap songs in the top 100.
See Clarence "Blowfly" Reid for just one example.
I cannot believe I just typed a "rap history" post on ECF.
Correct!
Not only that but Sugar Hill wasn't even the first to come out of the studio with a rap song. That would have been King Tim III (Personality Jock)" by The Fatback Band they got theirs out weeks before Sugar Hill they just were not as popular and widespread.