Conversation so far:
When was Oingo Boingo born?
Oingo Boingo was an American new wave band, formed by songwriter Danny Elfman in 1979.
How did Oingo Boingo form?
Oingo Boingo emerged from a surrealist performance art theatrical troupe, The Mystic Knights of the Oingo Boingo, founded in 1972 and led by Danny Elfman's brother Richard Elfman.
Did Oingo Boingo make any albums?
Following the regional success of the Oingo Boingo EP, the group released its first full-length album in 1981, also titled Only a Lad, on A&M Records.

Question: what was their greatest accomplishment?
Self-contained rewrite: What was Oingo Boingo's greatest accomplishment?