It's not often you get Lady Gaga and Sting sharing a stage, much less dueting. But last night, all in the name of charity, that is exactly what transpired as the duo shared the stage. The pair belted out Stand By Me as GaGa tinkled the ivories.
And it wasn't the only star performance of the night. Sir Elton John took to the stage sang his own version of Madonna's Like A Virgin while male dancers clad in nothing more than their underwear danced around him.
As ever GaGa's footwear was a cause for talk and she had to remove one of her enormous platform shoes to be able to play the piano. After her Sting collaboration, the pair were joined by Dame Shirley Bassey, Debbie Harry and Bruce Springsteen for their version of Don't Stop Believin', the track by 80s group Journey which has seen a resurgence of popularity thanks to hit TV series Glee.
The Rainforest Foundation was set up by Sting and his wife Trudie Styler (who put last night's star-studded event together) to raise money and awareness for the plight of the amazonian rainforests. Find out more at rainforestfoundationuk.org.
By Pat McNulty