The "rock" concert in question is "Devo". It was referred to as "punk rock" by one of the characters.
Archie preventing Stephanie from attending the DEVO concert is actually very timely. A few weeks before this show aired, and possibly very close to the filming, DEVO played a big New York City show on Halloween, October 31st at Radio City Music Hall. The script however has DEVO performing the concert at Madison Square Garden.