US rockers Aerosmith ensured day one of the Calling Festival at Clapham Common ended with Music From Another Dimension.
The best-selling American rock band of all time played a two hour set which included ageless anthems Dream On, Love In An Elevator, Livin' On The Edge, I Don't Want To Miss A Thing, Walk This Way and Cryin'.
Wearing leather jeans and leopard skin shirt, Steven Tyler effortlessly opened with Mama Kin and his first words to the London audience involved a belch! 'That's what I'm talking about!' He said.
"Clapham give it up! How you doin' tonight?" The lead singer asked.
"I'm so glad you all came out here to see me tonight," Tyler told the screaming crowds, who had stayed despite the rain earlier in the day.
They even paid homage to the UK with a cover of The Beatles tracks Come Together and Lady Madonna.
The 66-year-old rocker, also known as the Demon of Screamin', went down into the crowd at the front of the stage and sang with the fans during a rendition of Same Old Song And Dance from 1974 album Get Your Wings.
The multi-instrumentalist showed off his skills on the harmonica throughout the set and took to the piano during the encore for a version of crowd favourite Dream On.
The veteran five-piece band are currently on their Let Rock Rule world tour, which involves a North American leg with Guns 'n' Roses guitarist, Slash.
Richie Sambora, Joe Bonamassa, Thunder, The Jezabels and Lonely The Brave were also part of this year's line up. Stevie Wonder will headline Sunday's event.