After rocking out the O2 Arena with her ‘Circus’ tour, Britney Spears kept the partying going last night (June 6) by hittting up The Maddox Club in London.

Proving she’s a responsible pop princess, Britney left the UK hotspot at 12:30 am surrounded by an army of bodyguards. She was joined by an unknown male for company who sat next to her in the rear of the vehicle as it made a fast getaway.

This rare night out on the town is a welcome treat for Miss Spears who is reportedly sick and tired of touring. “It’s a freak show right now,” a tour insider tells E!. “(Britney’s) phoning every song in. It’s pretty obvious she is not happy to be here.”

So who is the ringmaster behind Britney’s Circus? Her father/conservator Jamie Spears, of course.

Making matters worse — he plans to add a string of shows and keep his reluctant daughter on road.

An insider tells Reveal mag: “Jamie can’t physically force Britney to get on stage and do more concerts, but he does have nearly all the power. He controls the purse strings and can make things very difficult for Britney if he chooses to. He gets to dictate her schedule — where she goes, who she sees, who she doesn’t see. He’s in charge of everything to do with her life. It’s a battle of wills over who will win — but while her dad remains in charge, he’ll be laying down the law.”