Madonna, Green Day, Snoop swore on broadcast.
The BBC has been chastised by the media regulator for broadcasting profanity and offensive language from artists including Madonna, Green Day and Snoop Dogg during last summer's Live 8 concert.
Ofcom criticized the BBC's failure to use a standard delay to filter out offensive language during the event, which gathered more than a billion people in cities across the world to pressure rich nations to do more for the poor.
It said the broadcaster "should have anticipated an audience for this event which would include a significant number of children."
Madonna opened her performance with an expletive and a user of the BBC Web site later wrote in the Live 8 comments section: "I would have liked my 7-year-old to see a piece of history in the making, however I do not want her to think that swearing is the way to ending poverty."
The BBC told the regulator it regretted any offence caused to viewers, "particularly the stream of expletives and racist terms used by the act Snoop Dogg," one of the world's most famous rappers. The broadcaster noted that the event was billed as a live concert, and that any delay was forbidden under its contract with organizers.