Robbie Williams' dancer playfully grabbed his bottom as the star headlined BST Hyde Park on Saturday.
The Feel hitmaker, 50, displayed his numerous tattoos as he put on a raunchy performance for the 60,000-strong crowd.
He wore a white blazer and vest, teamed with baggy trousers and a huge silver chain which read, 'F*** OFF'.
The former Take That star wore an identical outfit for his gig in Gran Canaria, Spain on Thursday.
He wrote on Instagram after the show: 'Gran Canaria: thank you so much - you were the perfect audience.
'Thank you for having me on the island and I hope to see you again soon. Hyde Park: you’re up next! X'
Back on the BST stage, Robbie's back-up dancers, all female, wore gorgeous carnival-inspired bodysuits with black ankle boots.
American Express presents BST Hyde Park runs from June 29 to July 14 and has different headliners each day.
Glastonbury headliner Sza headlined on June 29, Andrea Bocelli headlined on Friday, and Shania Twain will headline Sunday.
Shania, 58, also performed at Glastonbury, taking over the coveted Legends Slot of the Pyramid Stage.
On Thursday, she appeared at Wytham Festival and looked fantastic in a orange padded jacket and a black bodysuit.
Also performing on Saturday was Shaun Ryder's Black Grape who belted out their hits with a water bottle in hand.
He smiled as Kermit joined him front and centre and they sang for the crowd who braved the intermittent rain.
Kate Nash was also there and delighted fans with her tight and very unique pink which made her appear nude in places.
Kate stormed the UK music scene in 2007 with hit song Foundations and her debut album Made Of Bricks went straight to number one.
Returning to the BST Hyde Park stage was Seal who performed just on Friday as Andrea's special guest.
Seal looked fabulous in a long dress-like outfit which he wore over black jeans and partially covered with a black blazer.
BST's final headliner this year will be K-Pop group Stray Kids, but not before Kylie Minogue and Stevie Nicks take their turns.
