If you think you`re balling out spending a stack in the club think again,Rihanna was in London Monday night to perform at the O2 Arena and the show must have gone really well because the afterparty was the place to be!

Rihanna brought her crew of 70 people to the London nightclub Mahiki after the show, where they were all treated to a private dance floor and a constant flow of alcohol.

Witnesses say people brought over “Krug champagne, huge bottles of Grey Goose vodka and trays of Jager-bombs” endlessly throughout the night.

In total, Rihanna shelled out over $22,000 on booze in just 3 hours!