The biggest media event ever has resulted in the biggest ever clean-up operation in Westminster City Council's history.
It has been predicted that last Saturday's Live 8 concert in Hyde Park could have generated as much as 400 tonnes of waste.
A Westminster City Council spokesman said: "It was the biggest collection operation for a single event in the history of Westminster, which spans hundreds of years.
From the surrounding streets of Hyde Park alone the council's contractor Onyx collected 15 tonnes of rubbish - an amount of litter normally collected over 40 days.
Inside the park the council was only responsible for waste in its southern end, where 55,000 people watched the concert to Make Poverty History on giant TV screens.
It took 20 Onyx staff and 50 Royal Parks staff working until 8 am Sunday morning to clear up 150 tonnes of what was mostly discarded food and drinks packaging.
In the main area, where 155,000 people saw the likes of U2, Coldplay and Madonna perform, Royal Parks staff were still clearing debris on Monday afternoon.
No figure for the amount of rubbish in this part of the park could be given, but the Westminster spokesman added that, based on the amount of waste they had collected, the total could be expected to be in the region of between 300 and 400 tonnes.
The greatest rock concert of all time also had one unusual category of waste.
Live 8 was a dry event, which meant that gig-goers had to leave a quarter of a tonne of unopened beer, wine and alco-pops at the gates.