Robbie Williams and Robin Gibb have helped raise $2.4 million for Cauldwell Children.
Last week the pair performed for a private audience, waiving their usual fee at the Cauldwell Children Butterfly Benefit.
The audience then returned the goodwill by raising the more than two million pounds.
The funds that Robbie Williams and Robin Gibb helped raise will go to help families with sick and disabled children through the Cauldwell Charity.