Conversation so far:
what political protest did Frenzal Rhomb participate in?
During 2003, Frenzal Rhomb's Lindsay McDougall organised Rock Against Howard, a compilation album, by various Australian musicians as a protest against incumbent Prime Minister John Howard's government.
why did Frenzal Rhomb protest incumbent Prime Minister John Howard's government?
what is the name of the album Frenzal Rhomb's Lindsay McDougall organisedthat protested incumbent Prime Minister John Howard's government?
During 2003, Frenzal Rhomb's Lindsay McDougall organised Rock Against Howard, a compilation album, by various Australian musicians as a protest against incumbent Prime Minister John Howard's government.
what happened to Frenzal Rhomb in 2004?
In July 2004, radio presenter Jackie O was to MC at the Bassinthegrass festival in Darwin. Jackie arrived late, causing Frenzal Rhomb to cut their setlist short by several songs.
what songs did Frenzal Rhomb play at the Bassinthegrass festival in Darwin when Jackie O arrived late?
Lindsay McDougall began playing AC/DC's Thunderstruck over Jackie O's voice, who was attempting to make an announcement to the audience.
was the Bassinthegrass festival in Darwin successful in 2004?

Question: who is Jackie O?
Self-contained rewrite: who is Jackie O in relation to Frenzal Rhomb?