Following her six-night string of shows at The O2, she splashed out on booze in a Champagne bar at the Andaz Hotel in Liverpool Street, reported Sun Online.
"Beyonce wanted to say thanks to all of the backing dancers, crew and everyone else involved with putting on the six shows. Between the lot of them they managed to drink their way through more than 17,000 pounds worth of booze in just a few hours.
"They got stuck in as they knew they had a few days off afterwards. They were still in there at closing time at 4am. They are only part-way through her Mrs Carter tour, but the pressure was on in London and she was chuffed they all helped her put on a good show."
She'll return to the UK on June 1 to play a gig at Twickenham Stadium on behalf of women's charity Chime For Change.